發(fā)布時(shí)間：2018-01-21 04:43

  本文關(guān)鍵詞： 生活飲用水 氯化消毒副產(chǎn)物 氯代酚 固相萃取 高效液相色譜　出處：《西北師范大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：農(nóng)村飲用水安全是反映農(nóng)村社會(huì)經(jīng)濟(jì)發(fā)展和居民生活質(zhì)量的重要指標(biāo)，是影響居民健康水平的重要標(biāo)志。飲用水中的氯代酚含量雖微，但其對(duì)環(huán)境的危害和人類健康的影響不可忽視。我國(guó)《生活飲用水檢驗(yàn)規(guī)范》規(guī)定酚類為飲用水必查項(xiàng)目，應(yīng)小于0.002mg/L。 本文主要研究了農(nóng)村生活飲用水中氯代酚的分析測(cè)定方法，用固相萃取-高效液相色譜法測(cè)定農(nóng)村生活飲用水中2-氯酚(2-CP)、2,4-二氯酚(2,4-DCP)、2,4,6-三氯苯酚(2,4,6-TCP)和五氯酚(PCP)。以測(cè)定民樂縣不同地點(diǎn)生活飲用水中的氯代酚為基礎(chǔ)，分別對(duì)四種氯代酚的理化性質(zhì)及危害進(jìn)行介紹，，對(duì)其分析檢測(cè)方法進(jìn)行綜述，并概述了液體樣品的幾種預(yù)處理技術(shù)。在對(duì)固相萃取條件、色譜條件進(jìn)行優(yōu)化的基礎(chǔ)上建立了測(cè)定四種氯代酚的固相萃取-高效液相色譜分析方法。結(jié)果表明，在色譜柱為Hypersil ODS(4.6mmi.d.×250mm，5μm)、檢測(cè)器為紫外檢測(cè)器、流動(dòng)相為含1%乙酸的甲醇溶液:含1%乙酸的超純水、流速為1.0mL/min、進(jìn)樣量為20μL的最佳色譜條件下，HPLC可以完全分離四種氯代酚。四種氯代酚的檢出限分別為2-氯酚：0.00006mg/L；2,4-二氯酚：0.00010mg/L；2,4,6-三氯酚：0.00007mg/L；五氯酚：0.00002mg/L。加標(biāo)回收率在86.37%~98.35%之間，峰面積的相對(duì)標(biāo)準(zhǔn)偏差在2.13%~6.44%之間。試驗(yàn)證明此方法具有操作簡(jiǎn)便、干擾小、分析成本低的特點(diǎn)，能滿足農(nóng)村生活飲用水中痕量氯代酚的檢測(cè)要求。對(duì)于研究氯代酚對(duì)農(nóng)村生活飲用水環(huán)境質(zhì)量的影響具有一定的現(xiàn)實(shí)意義。
[Abstract]:Drinking water safety in rural areas is an important indicator to reflect the social and economic development of rural areas and the quality of life of residents. It is an important indicator of affecting the health level of residents. The content of chlorophenols in drinking water is small. However, its harm to the environment and human health can not be ignored. Our country's "domestic drinking Water Inspection Standard" stipulates that phenols must be checked for drinking water, and should be less than 0.002 mg 路L ~ (-1) 路L ~ (-1). The analytical method of chlorophenol in rural drinking water was studied in this paper. The solid phase extraction (SPE)-high performance liquid chromatography (HPLC) was used to determine 2-chlorophenol 2-CPN 2 in rural drinking water. The determination of chlorophenol in drinking water in Minle County is based on the determination of chlorophenol in drinking water in different locations of Minle County by using 4-dichlorophenol (4-DCPP) and 4-dichlorophenol (4-dichlorophenol) and pentachlorophenol (PCP) and pentachlorophenol (PCP). The physical and chemical properties and hazards of four chlorophenols were introduced, and the analytical methods were reviewed. Several pretreatment techniques for liquid samples were also summarized. Based on the optimization of chromatographic conditions, a solid phase extraction (SPE)-high performance liquid chromatography (HPLC) method for the determination of four chlorophenols was established. The chromatographic column was Hypersil ODS4.6mmi.d. 脳 250mm-1 5 渭 m, and the detector was UV detector. The mobile phase was methanol solution containing 1% acetic acid: ultra pure water containing 1% acetic acid, the flow rate was 1.0 mL / min, and the sample amount was 20 渭 L under the optimum chromatographic conditions. Four chlorophenols can be completely separated by HPLC. The detection limit of these four chlorophenols is 2 chlorophenol: 0.00006 mg / L; 24-dichlorophenol: 0.00010 mg / L; 24-trichlorophenol: 0.00007mg / L; The recoveries of pentachlorophenol: 0.00002 mg / L were in the range of 86.37% or 98.35%. The relative standard deviation of peak area is between 2.13% and 6.44%. The experiment shows that this method is simple, easy to operate, less interference and low analysis cost. It can meet the requirements of determination of trace chlorophenol in rural drinking water, and has certain practical significance for studying the influence of chlorophenol on the environmental quality of rural drinking water.
【學(xué)位授予單位】：西北師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：O657.72;R123.1

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