標(biāo)準(zhǔn)編號:	GB/T 5750.8-2023
中文名稱:	生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法 第8部分：有機(jī)物指標(biāo)
英文名稱:	Standard examination methods for drinking water—Part 8: Organic indices
中標(biāo)分類:	C51    環(huán)境衛(wèi)生
行業(yè)分類:	GB    國家標(biāo)準(zhǔn)
ICS分類:	13.060 13.060     13.060
發(fā)布機(jī)構(gòu):	國家市場監(jiān)督管理總局 國家標(biāo)準(zhǔn)化管理委員會
發(fā)布日期:	2023-03-17
實(shí)施日期:	2023-10-1
標(biāo)準(zhǔn)狀態(tài):	valid
替代舊標(biāo)準(zhǔn):	GB/T 5750.8-2006 生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法 有機(jī)物指標(biāo) GB/T 32470-2016 生活飲用水臭味物質(zhì) 土臭素和2-甲基異莰醇檢驗(yàn)方法
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	225000 字
翻譯價格(元):	15750.0
交付時間:	付款后 1~5 個工作日

Foreword This document is drafted in accordance with the provisions of GB/T 1.12020 "Guidelines for standardization work Part 1: the structure of standardized documents and drafting rules This document is part 8 of GB/T 5750 "Standard Test Methods for Drinking Water". GB/T 5750 has published the following parts Part 1:General Provisions. Part 2: the collection and preservation of water samples. Part 3: Quality control of water quality analysis. Part 4: sensory properties and physical indicators Part 5: inorganic non-metallic indicators. Part 6: metal and metal-like indicators. Part 7: organic composite indicators. Part 8: organic indicators. Part 9: Pesticide indicators. Part 10: Disinfection by-product indicators. Part 11: Disinfectant indicators. Part 12: Microbiological indicators. Part 13: Radioactive indicators. This document replaces GB/T 5750.8-2006 "drinking water standard test method organic indicators" and GB/T32470-2016 "drinking water odor substances earth odor and 2-methyl isohydric alcohol test method". Among them, GB/T32470-2016 all the contents of this document 76.1, compared with GB/T 5750.8-2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) increased the "terms and definitions" (see Chapter 3) b) the addition of 24 test methods (see 4.2,4.3,13,1,15.1,16,2,20,1,48,1,61,1,75,1,75,2,76,1,78.1,78,2_79.1_79.2,80.1,81.1,82,1,83,1,84.1,86,1,88,1,89,1. 90.1). c) Changed 1 test (see 21.2, 18.4 of the 2006 version);) d) deleted 12 tests (see 1,1,3,1,4,1,9,2,12,1,17,1,18,1,18,3,23,1,24,1,37.1, of the 2006 edition 44.1) Please note that some of the contents of this document may relate to patents. The issuer of this document does not assume responsibility for identifying patents. Introduction GB/T 5750 "Standard Test Methods for Drinking Water" as the recommended national standard for drinking water testing technology and GB5749 "Drinking Water Sanitation Standards" supporting the important technical support of GB5749, for the implementation of GB5749, to carry out health and safety assessment of drinking water to provide testing methods. GB / T 5750 consists of 13 parts. Part 1: General Provisions. The purpose is to provide the basic principles and requirements of water quality testing. Part 2: the collection and preservation of water samples. The purpose is to provide water samples collected, preservation, management, transport and sampling quality control of the basic principles, measures and requirements. Part 3: quality control of water quality analysis. The purpose is to provide water quality inspection and testing laboratory quality control requirements and methods Part 4: Sensory traits and physical indicators. The purpose is to provide sensory traits and physical indicators of the corresponding test methods Part 5: inorganic non-metallic indicators. The purpose is to provide inorganic non-metallic indicators of the corresponding test methods Part 6: Metals and metal-like indicators. The purpose is to provide metal and metal-like indicators of the corresponding test methods Part 7: Organic composite indicators. The purpose is to provide a comprehensive index of organic substances corresponding test methods Part 8: organic indicators. The purpose is to provide the corresponding test methods for organic indicators. Part 9: Pesticide indicators. The purpose is to provide the corresponding test methods for pesticide indicators. Part 10: Disinfection by-products indicators. The purpose is to provide the corresponding test methods for disinfection by-product indicators Part 11: Disinfectant indicators. The purpose is to provide the corresponding test methods for disinfectant indicators Part 12: Microbiological indicators. The purpose is to provide the corresponding test methods for microbial indicators Part 13: radioactive indicators. The purpose is to provide the corresponding test methods for radioactive indicators 1 Scope This document describes the domestic drinking water carbon tetrachloride, 1,2-dichloroethane 1,1,1-trichloroethane, vinyl chloride, 1,1-dichloroethylene 1,2 dichloroethylene, trichloroethylene, tetrachloroethylene, benzo[a]flower, acryl coolamine, has been coolamine, di(2-ethyl has been) phthalate, microcystin, ethyl lung, acryl meth, acrolein, epichlorohydrin, benzene, toluene, xylene ethylbenzene, isopropylbenzene, chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, trichlorobenzene, tetrachlorobenzene, nitrobenzene, trinitrotoluene, dinitrobenzene, nitrochlorobenzene, dinitrochlorobenzene, chlorobutadiene, styrene, triethylamine, aniline, carbon disulfide, hydrate trap, turpentine, scold, picric acid, butylxanthogenic acid, hexachlorobutadiene, diphenylamine, dichloromethane 1,1- dichloroethane, 1,2-dichloropropane, 1,3-dichloropropane, 2,2-dichloropropane, 1,1,2-trichloroethane, 1,2,3-trichloropropane, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,2-dio-3-chloropropane, 1,1-dichloropropene, 1,3-dichloropropene 1,2-dioethylene, 1,2-dioethane, 1,2 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, propylbenzene, 4-methylisopropylbenzene, butylbenzene, sec-butylbenzene, tert-butylbenzene, pentachlorobenzene, 2-chlorotoluene, 4-chlorotoluene, aubenzene, cai, bisphenol A, hyoscyamine, 2-methylisobutanol, pentachloropropane, acrylic acid, glutaraldehyde, naphthenic acid, anisole, theophyll, perfluorooctanoic acid, perfluorooctane sulfonic acid, dimethyl disulfide, dimethyl trisulfide, polycyclic Aromatic hydrocarbons, polychlorinated biphenyls, carbon tetrachloride in pharmaceuticals and personal care products and water (capillary column gas chromatography) vinyl chloride (capillary column gas chromatography) 1,1-dichloroethene (purge and trap gas chromatography), 1,2-dichloroethene (purge and trap gas chromatography) and [a] flowers, propylene koolamine (gas chromatography) has been endocoumarine, microcystin (high performance liquid chromatography) Acrylaldehyde, Acrylamide, Acrylaldehyde, Benzene (liquid-liquid extraction capillary column gas chromatography), Toluene (liquid-liquid extraction capillary column gas chromatography), Xylene (liquid-liquid extraction capillary column gas chromatography), B (liquid-liquid extraction capillary column gas chromatography), Nitrobenzene, Trinitrotoluene, Dinitrobenzene, Nitrochlorobenzene, Dinitrochlorobenzene, Chlorobutadiene, Styrene (liquid-liquid extraction capillary column gas chromatography) Triethylamine, aniline, carbon disulfide, hydrated fat, turpentine, Vishnu, picric acid, butylxanthic acid, hyoscyamine, 2-methylisocommodol, pentachloropropane, acrylic acid (ion chromatography), glutaraldehyde, naphthenic acid, dimethyl disulfide, dimethyl trisulfide, polycyclic aromatic hydrocarbons, polychlorinated biphenyls determination method. This document applies to the determination of organic matter indicators in drinking water and (or) water source water 2 Normative reference documents The following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date of the corresponding version applies to this document; do not note the date of the reference document, its latest version (including all the revision of the list) applies to this document. GB/T 5750.1 Standard test methods for drinking water Part 1: General Provisions GB/T 5750.3 standard test methods for drinking water Part 3: quality control of water quality analysis GB/T 5750.10-2023 standard test methods for drinking water Part 10 disinfection by-product indicators GB/T6682 analytical laboratory water specifications and test methods 3 Terms and definitions GB/T 5750.1GB/T 5750.3 defined terms and definitions apply to this document 4 Carbon tetrachloride 4.1 Capillary column gas chromatography 4.1.1 Minimum detection mass concentration The minimum detection mass concentration of this method are: trichloromethane 0.2g / L; carbon tetrachloride.1g / L 4.1.2 Principle The water sample is placed in a sealed headspace bottle, at a certain temperature and after a certain time of equilibrium, trichloromethane and carbon tetrachloride in water escape to the upper space and reach dynamic equilibrium in the gas-liquid phase, at this time, the concentration of trichloromethane and carbon tetrachloride in the gas phase is proportional to its concentration in the liquid phase. Through the determination of trichloromethane and carbon tetrachloride concentration in the gas phase, the concentration of trichloromethane and carbon tetrachloride in the water sample can be calculated. 4.1.3 Reagents or materials 5 1,2-dichloroethane 5.1 purge trap gas chromatography mass spectrometry Determination by the method described in 4.2. 5.2 Headspace capillary column gas chromatography (hydrogen flame detector) Determined by the method described in 21.2 5.3 Headspace capillary column gas chromatography (electron capture detector) Determined by the method described in 4.3. 6 1,1,1-trichloroethane 6.1 Blow-by-trap gas chromatography-mass spectrometry Determination by the method described in 4.2 6.2 Headspace capillary column gas chromatography Determination by the method described in 4.3 7 Vinyl chloride 7.1 Capillary column gas chromatography 7.1.1 Minimum detection mass concentration If 100mL of water sample is taken and 1mL of gas on liquid is taken for chromatographic determination, the minimum detectable mass concentration is 1g/L. 8 1,1-Dichloroethylene 8.1 Purge and trap gas chromatographic method 8.1.1 Minimum detectable mass concentration The minimum detectable mass concentrations for this method are: 1,1-dichloroethylene, 0.02 g/L; trans-1,2-dichloroethylene, 0.02 g/L; cis-1. Impurities in the purge gas, organic matter released from the trap and piping are the main cause of contamination. Therefore, avoid using non-Teflon lines, sealing materials, or flow controllers with rubber components in purge-trap systems. During sampling, processing and transportation, reagent blanks prepared with pure water are required for calibration, and the whole system is frequently baked and purged. 8.1.2 Principle At room temperature, inert gas will be in a special purge bottle of water samples of 1,1-dichloroethylene and other volatile organic compounds blow out, to be measured in the trap adsorption. Then, by thermal desorption of the substances to be measured by the inert gas into the gas chromatograph for separation and determination. 8.1.3 Reagents or materials 8.1.3.1 High purity nitrogen [o(N)>99.999%]. 8.1.3.2 Pure water: chromatographic test without interfering components 8.1.3.3 Ascorbic acid (C.H.O) 9 1,2-Dichloroethylene 9.1 Purge and trap gas chromatography Determination by the method described in 8.1 9.2 Purge-and-trap gas chromatography-mass spectrometry Determined by the method described in 4.2. 9.3 Headspace capillary column gas chromatography Determination by the method described in 4.3 10 Trichloroethylene 10.1 Purge-trap gas chromatography-mass spectrometry Determination by the method described in 4.2 10.2 Headspace capillary column gas chromatography Determination by the method described in 4.3 11 Tetrachloroethylene 11.1 Purge-and-trap gas chromatography-mass spectrometry Determination by the method described in 4.2 11.2 Headspace capillary column gas chromatography Determination by the method described in 4.3 12 Benzo[a]flower 12.1 High performance liquid chromatography (I) 12.1.1 Minimum detectable mass concentration The minimum detection mass of this method is 0.07ng, and if 500 water samples are taken for determination, the minimum detection mass of this method is 1.4ng/L. 12.1.2 Principle Benzo[a]flower and other aromatic hydrocarbons in water can be extracted by cyclohexane, the extract is purified by adsorption of activated alumina, eluted with benzene, concentrated, and then quantified by liquid chromatography - fluorescence detector. 12.1.3 Reagents or materials The reagents and materials used should be blank test, that is, through the entire operation process, to prove the presence of non-interfering substances. All reagents should be filtered through a 0.45um membrane before use. 12.1.3.1 Ultrapure water; resistivity greater than 18.0MQ-cm. 12.1.3.2 Activated alumina: take 250g of 100 mesh 200 mesh neutral alumina (Al0;) for chromatography at 10C activation h, cooled and bottled. bottle, stored in the desiccator, and set aside. 12.1.3.3 Hydrochloric acid solution (1+19): Take 5mL of hydrochloric acid (o2=1.19g/mL), add to 95mL of pure water and mix well. 12.1.3.4 Glass wool: Soak with hydrochloric acid solution (1+19) overnight, then wash with pure water to neutral. Soak with sodium hydroxide solution overnight, wash with pure water to neutral, dry at 105C and set aside. 13 Acryl Coolamine 13.1 High performance liquid chromatography tandem mass spectrometry 13.1.1 Minimum detection mass concentration Take 100mL of water sample after extraction and volume to 10mL to determine the minimum detection mass concentration of 0.020g/L This method is only used for the determination of domestic drinking water 13.1.2 Principle The water sample is purified and enriched by activated carbon solid phase extraction column, and the eluate is concentrated, capacitated and filtered, then separated by liquid chromatography, detected by tandem mass spectrometry, and quantified by isotope internal standard method. 13.1.3 Reagents Unless otherwise specified, the reagents used in this method are analytically pure, and the water used for the experiment is the first grade water specified in GB/T6682. 14 caprolactam 14.1 Gas chromatographic method 14.1.1 Minimum detectable mass concentration The minimum detection mass of this method is 10ng, if 25mL water sample is taken for determination, the minimum detection mass concentration is 0.2mg/L. Under the analytical conditions of this method, cyclohexane, cyclohexanol and cyclohexanone do not interfere with the determination. 14.1.2 Principle Caprolactam in water can be quantified by gas chromatography with a hydrogen flame ionization detector after concentration and dissolution of carbon disulfide. 14.1.3 Reagents or materials 15 bis(2ethylhexyl)phthalate vinegar 15.1 solid phase extraction gas chromatography mass spectrometry 15.11 Minimum detection mass concentration If 1L of water samples are taken for determination, the minimum detectable mass concentrations of this method are: diquat, .2g/L; 2,6-trichlorophenol, 0.40pg/L; hexachlorobenzene, 0,25pg/L; leuconazole, 0,72g/L; pentachlorophenol, 0.99pg/L; lindane, 0,27pg/L; chlorothalonil, 0,42pg/L; methyl parathion, 0.30pg/L; heptachlor 0.34ug/L; malathion, 0.0g/L; toxaphene, 0.25g/L; parathion, 0.30ug/L; DDT, 0.35ug/L; di(2-ethylhexyl) phthalate, 0.41g/L; acephate, 1.01pg/L. This method is only used for the determination of domestic drinking water 15.1.2 Principle The organic matter in the water sample is adsorbed through a large volume solid phase extraction column with polymethacrylic acid cool-styrene as the adsorbent, and eluted with a small amount of methanol, ethyl acetate and dichloromethane, and the eluate is separated and determined by gas chromatography-mass spectrometry after dehydration, purification, concentration and volume fixation. The separation was determined by gas chromatography-mass spectrometry (GC-MS). The retention time and mass spectra of the analytes were used to characterize the analytes, and then quantified by the relative intensities of the quantitative ions of the analytes and the internal standard ions and the standard curve. Each water sample contained a known concentration of the internal standard compound, which was determined by the internal standard calibration procedure. 16 Microcystin 16.1 High performance liquid chromatography 16.1.1 Minimum detectable mass concentration The minimum detectable masses of this method are: microcystin-RR, 6 ng; microcystin-LR, 6 ng. If 5 L of water samples are taken for determination, the minimum detectable mass concentrations are: microcystin-RR, 0.06 g/L; microcystin-LR.06 g/L. 16.1.2 Principle Water samples

Foreword Introduction 1 Scope 2 Normative reference documents 3 Terms and definitions 4 Carbon tetrachloride 5 1,2-dichloroethane 6 1,1,1-trichloroethane 7 Vinyl chloride 8 1,1-Dichloroethylene 9 1,2-Dichloroethylene 10 Trichloroethylene 11 Tetrachloroethylene 12 Benzo[a]flower 13 Acryl Coolamine 14 caprolactam 15 bis(2ethylhexyl)phthalate vinegar 16 Microcystin

前言 本文件按照GB/T 1.12020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草 本文件是GB/T 5750《生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法》的第8部分。GB/T 5750已經(jīng)發(fā)布了以下部分 第1部分:總則; 第2部分:水樣的采集與保存; 第3部分:水質(zhì)分析質(zhì)量控制; 第4部分:感官性狀和物理指標(biāo) 第5部分:無機(jī)非金屬指標(biāo); 第6部分:金屬和類金屬指標(biāo): 第7部分:有機(jī)物綜合指標(biāo); 第8部分:有機(jī)物指標(biāo): 第9部分:農(nóng)藥指標(biāo); 第10部分:消毒副產(chǎn)物指標(biāo); 第11部分:消毒劑指標(biāo); 第12部分:微生物指標(biāo): 第13部分:放射性指標(biāo)。 本文件代替GB/T 5750.8-2006《生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法有機(jī)物指標(biāo)》和GB/T32470-2016《生活飲用水臭味物質(zhì)土臭素和2-甲基異醇檢驗(yàn)方法》。其中,將GB/T32470-2016全部內(nèi)容納人本文件76.1中,與GB/T 5750.8-2006相比，除結(jié)構(gòu)調(diào)整和編輯性改動外,主要技術(shù)變化如下: a)增加了“術(shù)語和定義”(見第3章) b)增加了24個檢驗(yàn)方法(見4.2,4.3,13,1,15.1,16,2、20,1,48,1,61,1,75,1,75,2、76,1,78.1、78,2_79.1_79.2,80.1,81.1,82,1,83,1,84.1,86,1,88,1,89,1,90.1): c)更改了1個檢驗(yàn)方法(見21.2,2006年版的18.4);) d)刪除了12個檢驗(yàn)方法(見2006年版1,1,3,1,4,1,9,2,12,1,17,1,18,1,18,3,23,1,24,1,37.1、 44.1) 請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識別專利的責(zé)任 引言 GB/T 5750《生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法》作為生活飲用水檢驗(yàn)技術(shù)的推薦性國家標(biāo)準(zhǔn)與GB5749《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》配套,是GB5749的重要技術(shù)支撐,為貫徹實(shí)施GB5749,開展生活飲用水衛(wèi)生安全性評價提供檢驗(yàn)方法。 GB/T 5750由13個部分構(gòu)成。 第1部分:總則。目的在于提供水質(zhì)檢驗(yàn)的基本原則和要求。 第2部分:水樣的采集與保存。目的在于提供水樣采集、保存、管理、運(yùn)輸和采樣質(zhì)量控制的基本原則、措施和要求。 第3部分:水質(zhì)分析質(zhì)量控制。目的在于提供水質(zhì)檢驗(yàn)檢測實(shí)驗(yàn)室質(zhì)量控制要求與方法 第4部分:感官性狀和物理指標(biāo)。目的在于提供感官性狀和物理指標(biāo)的相應(yīng)檢驗(yàn)方法 第5部分:無機(jī)非金屬指標(biāo)。目的在于提供無機(jī)非金屬指標(biāo)的相應(yīng)檢驗(yàn)方法 第6部分:金屬和類金屬指標(biāo)。目的在于提供金屬和類金屬指標(biāo)的相應(yīng)檢驗(yàn)方法 第7部分:有機(jī)物綜合指標(biāo)。目的在于提供有機(jī)物綜合指標(biāo)的相應(yīng)檢驗(yàn)方法 第8部分:有機(jī)物指標(biāo)。目的在于提供有機(jī)物指標(biāo)的相應(yīng)檢驗(yàn)方法。 第9部分:農(nóng)藥指標(biāo)。目的在于提供農(nóng)藥指標(biāo)的相應(yīng)檢驗(yàn)方法。 第10部分:消毒副產(chǎn)物指標(biāo)。目的在于提供消毒副產(chǎn)物指標(biāo)的相應(yīng)檢驗(yàn)方法 第11部分:消毒劑指標(biāo)。目的在于提供消毒劑指標(biāo)的相應(yīng)檢驗(yàn)方法 第12部分:微生物指標(biāo)。目的在于提供微生物指標(biāo)的相應(yīng)檢驗(yàn)方法 第13部分:放射性指標(biāo)。目的在于提供放射性指標(biāo)的相應(yīng)檢驗(yàn)方法 1范圍 本文件描述了生活飲用水中四氯化碳、1,2-二氯乙烷1,1,1-三氯乙烷、氯乙烯、1,1-二氯乙烯1,2二氯乙烯、三氯乙烯、四氯乙烯、苯并[a]花、丙烯酷胺、已內(nèi)酷胺、鄰苯二甲酸二(2-乙基已基)、微囊菜毒素、乙肺、丙烯睛、丙烯醛、環(huán)氧氯丙烷、苯、甲苯、二甲苯、乙苯、異丙苯、氯苯、1,2-二氯苯、1,3-二氯苯、1,4-二氯苯、三氯苯、四氯苯、硝基苯、三硝基甲苯、二硝基苯、硝基氯苯、二硝基氯苯、氯丁二烯、苯乙烯、三乙胺、苯胺、二硫化碳、水合阱、松節(jié)油、叱院、苦味酸、丁基黃原酸、六氯丁二烯、二苯胺、二氯甲烷1,1-二氯乙烷、1,2-二氯丙烷、1,3-二氯丙烷、2,2-二氯丙烷,1,1,2-三氯乙烷、1,2,3-三氯丙烷、1,1,1,2四氯乙烷,1,1,2,2-四氯乙烷,1,2-二澳-3-氯丙烷,1,1-二氯丙烯,1,3-二氯丙烯1,2-二澳乙烯、1,2-二澳乙烷、1,2,4-三甲苯、1,3,5-三甲苯、丙苯、4-甲基異丙苯、丁苯、仲丁基苯、叔丁基苯、五氯苯、2-氯甲苯、4-氯甲苯、澳苯、蔡、雙酚A、土臭素、2-甲基異獲醇、五氯丙烷、丙烯酸、戊二醛、環(huán)烷酸、苯甲醚、茶酚、全氟辛酸、全氟辛烷磺酸、二甲基二硫醚、二甲基三硫醚、多環(huán)芳烴、多氯聯(lián)苯、藥品及個人護(hù)理品的測定方法和水源水中四氯化碳(毛細(xì)管柱氣相色譜法)氯乙烯(毛細(xì)管柱氣相色譜法)1,1-二氯乙烯(吹掃捕集氣相色譜法),1,2-二氯乙烯(吹掃捕集氣相色譜法)并[a]花、丙烯酷胺(氣相色譜法)已內(nèi)酷胺、微囊藻毒素(高效液相色譜法)、乙睛、丙烯睛、丙烯醛、苯(液液萃取毛細(xì)管柱氣相色譜法)、甲苯(液液萃取毛細(xì)管柱氣相色譜法),二甲苯(液液取毛細(xì)管柱氣相色譜法)乙(液液取毛細(xì)管柱氣相色譜法)、硝基苯、三硝基甲苯、二硝基苯、硝基氯苯、二硝基氯苯、氯丁二烯、苯乙烯(液液萃取毛細(xì)管柱氣相色譜法)、三乙胺、苯胺、二硫化碳、水合胖、松節(jié)油、毗院、苦味酸、丁基黃原酸、土臭素、2-甲基異貨醇、五氯丙烷、丙烯酸(離子色譜法)、戊二醛、環(huán)烷酸、二甲基二硫醚、二甲基三硫醚、多環(huán)芳烴、多氯聯(lián)苯的測定方法。 本文件適用于生活飲用水中和(或)水源水中有機(jī)物指標(biāo)的測定 2規(guī)范性引用文件 下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中,注日期的引用文件,僅該日期對應(yīng)的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用于本文件。 GB/T 5750.1生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法第1部分:總則 GB/T 5750.3生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法第3部分:水質(zhì)分析質(zhì)量控制GB/T 5750.10-2023生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法第10部分消毒副產(chǎn)物指標(biāo)GB/T6682分析實(shí)驗(yàn)室用水規(guī)格和試驗(yàn)方法 3術(shù)語和定義 GB/T 5750.1GB/T 5750.3界定的術(shù)語和定義適用于本文件 4四氯化碳 4.1毛細(xì)管柱氣相色譜法 4.1.1最低檢測質(zhì)量濃度 本方法的最低檢測質(zhì)量濃度分別為:三氯甲烷0.2g/L;四氯化碳.1g/L 4.1.2原理 水樣置于密封的頂空瓶中,在一定溫度下經(jīng)一定時間的平衡，水中三氯甲烷、四氯化碳逸至上部空間,并在氣液兩相中達(dá)到動態(tài)平衡，此時，三氯甲烷、四氯化碳在氣相中的濃度與其在液相中的濃度成正比。通過對氣相中三氯甲烷、四氯化碳濃度的測定,可計(jì)算出水樣中三氯甲烷、四氯化碳的濃度。 4.1.3試劑或材料 5 1,2-二氯乙烷 5.1吹掃捕集氣相色譜質(zhì)譜法 按4.2描述的方法測定。 5.2頂空毛細(xì)管柱氣相色譜法(氫火焰檢測器) 按21.2描述的方法測定 5.3頂空毛細(xì)管柱氣相色譜法(電子捕獲檢測器) 按4.3描述的方法測定。 6 1,1,1-三氯乙烷 6.1 吹掃捕集氣相色譜質(zhì)譜法 按4.2描述的方法測定 6.2頂空毛細(xì)管柱氣相色譜法 按4.3描述的方法測定 7氯乙烯 7.1毛細(xì)管柱氣相色譜法 7.1.1最低檢測質(zhì)量濃度 若取水樣100mL,取1mL液上氣體進(jìn)行色譜測定，最低檢測質(zhì)量濃度為1g/L。 8 1,1-二氯乙烯 8.1吹掃捕集氣相色譜法 8.1.1 最低檢測質(zhì)量濃度 本方法的最低檢測質(zhì)量濃度分別為:1,1-二氯乙烯,0.02g/L;反-1,2-二氯乙烯,0.02g/L;順-1, 2-二氯乙烯,0.02ug/L。吹脫氣中的雜質(zhì)，捕集器和管路中釋放的有機(jī)物是污染的主要原因。因此，避免在吹掃-捕集系統(tǒng)使用非聚四氟乙烯管路、密封材料,或帶橡膠組件的流量控制器。在采樣、處理和運(yùn)輸過程中,需用純水配制的試劑空白進(jìn)行校正,經(jīng)常烘烤和吹脫整個系統(tǒng)。 8.1.2原理 在室溫下,惰性氣體將在特制吹掃瓶中水樣的1,1-二氯乙烯等揮發(fā)性有機(jī)物吹出,待測物被捕集器吸附。然后,經(jīng)熱解吸待測物由惰性氣體帶入氣相色譜儀,進(jìn)行分離和測定 8.1.3試劑或材料 8.1.3.1高純氮[o(N)>99.999%] 8.1.3.2純水:色譜檢驗(yàn)無干擾組分 8.1.3.3抗壞血酸(C.H.O)。 9 1,2-二氯乙烯 9.1吹掃捕集氣相色譜法 按8.1描述的方法測定 9.2吹掃捕集氣相色譜質(zhì)譜法 按4.2描述的方法測定。 9.3頂空毛細(xì)管柱氣相色譜法 按4.3描述的方法測定 10三氯乙烯 10.1吹掃捕集氣相色譜質(zhì)譜法 按4.2描述的方法測定 10.2頂空毛細(xì)管柱氣相色譜法 按4.3描述的方法測定 11 四氯乙烯 11.1吹掃捕集氣相色譜質(zhì)譜法 按4.2描述的方法測定 11.2頂空毛細(xì)管柱氣相色譜法 按4.3描述的方法測定 12苯并[a]花 12.1高效液相色譜法(I) 12.1.1最低檢測質(zhì)量濃度 本方法最低檢測質(zhì)量為0.07ng,若取500水樣測定，本方法最低檢測質(zhì)量度為1.4ng/L。 12.1.2原理 水中苯并[a]花及其他芳烴能被環(huán)已烷萃取,萃取液經(jīng)活性氧化鋁吸附凈化,以苯洗脫、濃縮后,可用液相色譜-熒光檢測器定量。 12.1.3試劑或材料 所用試劑和材料應(yīng)進(jìn)行空白試驗(yàn),即通過全部操作過程，證明無干擾物質(zhì)存在。所有試劑使用前均應(yīng)采用0.45um濾膜過濾。 12.1.3.1超純水;電阻率大于18.0MQ·cm。 12.1.3.2活性氧化鋁:取250g100目200目層析用中性氧化鋁(Al0;)于10C活化h,冷卻后裝 瓶，儲于干燥器內(nèi)，備用。 12.1.3.3鹽酸溶液(1+19):取5mL鹽酸(o2=1.19g/mL),加至95mL純水中，混勻 12.1.3.4玻璃棉:用鹽酸溶液(1+19)浸泡過夜，然后用純水洗至中性。用氫氧化鈉溶液浸泡過夜，純水洗至中性，于105C烘干備用。 13丙烯酷胺 13.1高效液相色譜串聯(lián)質(zhì)譜法 13.1.1最低檢測質(zhì)量濃度 取100mL水樣經(jīng)提取后定容至10mL測定最低檢測質(zhì)量濃度為0.020g/L本方法僅用于生活飲用水的測定 13.1.2原理 水樣通過活性炭固相萃取柱凈化和富集，洗脫液經(jīng)濃縮、定容和過濾后,采用液相色譜分離，串聯(lián)質(zhì)譜檢測,同位素內(nèi)標(biāo)法定量。 13.1.3試劑 除非另有說明,本方法所用試劑均為分析純,實(shí)驗(yàn)用水為GB/T6682規(guī)定的一級水。 14己內(nèi)酷胺 14.1氣相色譜法 14.1.1最低檢測質(zhì)量濃度 本方法最低檢測質(zhì)量為10ng,若取25mL水樣測定，則最低檢測質(zhì)量濃度為0.2mg/L在本方法的分析條件下,環(huán)已烷環(huán)已醇和環(huán)已酮不干擾測定 14.1.2原理 水中己內(nèi)酷胺經(jīng)濃縮和二硫化碳溶解后,可用帶氫火焰離子化檢測器的氣相色譜儀進(jìn)行定量測定。14.1.3試劑或材料 15鄰苯二甲酸二(2乙基已基)醋 15.1固相萃取氣相色譜質(zhì)譜法 15.11最低檢測質(zhì)量濃度 若取水樣1L測定，本方法的最低檢測質(zhì)量濃度分別為:敵敵，.2g/L;2,6-三氯酚，0.40pg/L;六氯苯,0,25pg/L;樂果,0,72g/L;五氯酚,0.99pg/L;林丹,0,27pg/L;百菌清,0,42pg/L;甲基對硫磷,0.30pg/L;七氯,0.34ug/L;馬拉硫磷,0.0g/L;毒死,0.25g/L;對硫磷,0.30ug/L;滴滴涕,0.35ug/L;鄰苯二甲酸二(2-乙基已基),0.41g/L;澳氰菊,1.01pg/L。 本方法僅用于生活飲用水的測定 15.1.2原理 水樣中有機(jī)物通過以聚甲基丙烯酸酷-苯乙烯為吸附劑的大體積固相萃取柱吸附，用少量甲醇、乙酸乙酷和二氯甲烷洗脫，洗脫液經(jīng)脫水、凈化提純、濃縮定容后,用氣相色譜質(zhì)譜聯(lián)用儀分離測定。根據(jù)待測物的保留時間和質(zhì)譜圖定性，再通過待測物的定量離子與內(nèi)標(biāo)定量離子的相對強(qiáng)度和標(biāo)準(zhǔn)曲線定量。每個水樣中含有已知濃度的內(nèi)標(biāo)化合物，通過內(nèi)標(biāo)校正程序測定。 16微囊藻毒素 16.1高效液相色譜法 16.1.1最低檢測質(zhì)量濃度 本方法最低檢測質(zhì)量分別為:微囊藻毒素-RR,6ng;微囊藻毒素-LR,6ng。若取5L水樣測定，則最低檢測質(zhì)量濃度分別為:微囊藻毒素-RR,0.06g/L;微囊藻毒素-LR.06g/L。16.1.2原理 水樣過濾后，濾液(水樣)經(jīng)反相硅膠柱富集萃取濃縮,藻細(xì)胞(膜樣)經(jīng)凍融萃取，反相硅膠柱富集萃取濃縮后,分別用高效液相色譜分析。 17乙睛 17.1氣相色譜法 17.1.1最低檢測質(zhì)量濃度 本方法最低檢測質(zhì)量為:乙睛,0.05ng;丙烯睛,0.05ng。若進(jìn)樣2;L,則最低檢測質(zhì)量濃度:乙睛0.025mg/L;丙烯睛,0.025mg/Lo在選定的色譜條件下，其他有機(jī)物不干擾 18丙烯睛 氣相色譜法:按17.1描述的方法測定 19丙烯醛 氣相色譜法:按GB/T 5750.10-2023中12.1描述的方法測定 20環(huán)氧氯丙烷 20.1氣相色譜質(zhì)譜法 20.1.1最低檢測質(zhì)量濃度 本方法環(huán)氧氯丙烷最低檢測質(zhì)量為0.06ng,若取1L水樣富集取，取液旋轉(zhuǎn)蒸發(fā)濃縮至1.0mL,則最低檢測質(zhì)量濃度為006g/L。 本方法僅用于生活飲用水的測定。 21苯 21.1液液萃取毛細(xì)管柱氣相色譜法 21.1.1最低檢測質(zhì)量濃度 本方法最低檢測質(zhì)量分別為;苯,0.20ng;甲苯,0,24ng;乙苯,0,25ng;對二甲苯,0,24ng;間二甲米,0.25ng;鄰二甲米,0,25ng;苯乙烯,0,25ng。若取200m水樣處理后測定，則最低檢測質(zhì)量濃度分別為:苯,0,005mg/L;甲苯,0,006mg/L;乙苯,0.006mg/L;對二甲苯,0,006mg/L;間二甲苯.0.006mg/L;鄰二甲苯,0.006mg/L;苯乙烯,0.006mg/L。 21.1.2原理 水中苯系物經(jīng)二硫化碳萃取后,硫酸-磷酸混合酸除去醇、酷、醚等干擾物質(zhì)，用氣相色譜氫火焰離子化檢測器測定,以相對保留時間定性,外標(biāo)法定量。 22甲苯 22.1吹掃捕集氣相色譜質(zhì)譜法 按4.2描述的方法測定。 22.2液液萃取毛細(xì)管柱氣相色譜法 按21.1描述的方法測定。 22.3頂空毛細(xì)管柱氣相色譜法 按21.2描述的方法測定 23二甲苯 23.1吹掃捕集氣相色譜質(zhì)譜法按4.2描述的方法測定