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METHOD OF DETERMINING CHLORINE-SUBSTITUTED PHENOLS IN AQUEOUS MEDIA
METHOD OF DETERMINING CHLORINE-SUBSTITUTED PHENOLS IN AQUEOUS MEDIA
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机译:水性介质中氯取代苯酚的测定方法
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摘要
FIELD: chemistry.;SUBSTANCE: invention describes a method of determining chlorine-substituted phenols in aqueous media, involving chemical modification thereof, extraction concentration and gas chromatographic detection, where at the chemical modification step, the modifying reagent used is iodine in amount of 0.01-0.03% in the presence of beta-alanine and ammonia in amount of 0.5-2.0% and 0.005-0.02% of the weight of the aqueous sample, respectively.;EFFECT: invention provides a lower detection level for chlorine-substituted phenols in water.;2 tbl, 2 dwg, 7 ex
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机译:发明领域本发明描述了一种测定水性介质中氯取代的苯酚的方法,包括对其进行化学修饰,萃取浓度和气相色谱检测的方法,其中在化学修饰步骤中,所使用的修饰剂为碘的量为0.01。 β-丙氨酸和氨分别占水性样品重量的0.5-2.0%和0.005-0.02%时为-0.03%;效果:本发明提供了水中氯取代酚的较低检测水平。; 2 tbl,2 dwg,7 ex
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