二苯碳酰二肼分光光度法测定水中六价铬影响因素探讨  

Discussion on influencing factors of hexavalent chromium determination in water by diphenylcarbazide photometric method

作　　者：彭琳 PENG Lin(Liwan Environmental Monitoring Station of Guangzhou Ecological Environment Bureau,Guangzhou 510000,China)

机构地区：[1]广州市生态环境局荔湾环境监测站,广州510000

出　　处：《黑龙江环境通报》2025年第2期124-126,共3页Heilongjiang Environmental Journal

摘　　要：铬是一种具有白色光泽、耐热、耐腐蚀且硬脆性比较高的金属,目前被广泛应用在其他金属表面,使金属具备耐用特征,六价铬便是自然界中铬的常见种类。随着时代的进步和社会经济的发展,六价铬造成的水污染问题越来越严峻,极大影响了生态环境和社会发展。为此,本文按照GB 7467-87 1987-08-01《水质六价铬的测定——二苯碳酰二肼分光光度法》,对二苯碳酰二肼分光光度法测定水中六价铬的相关方法做了实验分析,并且寻找出了相关不确定影响因素,对其进行评估,利用实验结果归纳和汇总,真实反映出了实验结果的真实性、准确性、置信度和推广性,希望给同行今后工作的开展提供相应借鉴和参考。Chromium is a metal with a white luster,heat resistance,corrosion resistance,and high brittleness,which is currently widely used on the surfaces of other metals to impart durability.Hexavalent chromium is a common form of chromium in nature.With the advancement of the times and the development of the economy and society,water pollution caused by hexavalent chromium has become increasingly severe,greatly affecting the ecological environment and social development.Therefore,according to GB 7467-871987-08-01"Determination of Hexavalent Chromium in Water Quality-Diphenylcarbazide Spectrophotometric Method,"this paper conducts experimental analysis on the related methods for determining hexavalent chromium in water by diphenylcarbazide spectrophotometry,identifies relevant influencing factors,evaluates them,and uses experimental results to summarize and reflect the authenticity,accuracy,confidence,and applicability of the experimental results,hoping to provide reference and guidance for future work in the same field.

关 键 词：二苯碳酰二肼分光光度法 六价铬 生态环境 水污染 

分 类 号：X832[环境科学与工程—环境工程] O657.3[理学—分析化学]