###
中国无机分析化学:2021,11(2):26-30
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
过硫酸钾氧化4-氨基安替比林光度法测定地表水中挥发酚
叶开晓, 童天喆, 梁柳玲, 洪欣
(广西壮族自治区生态环境监测中心)
Determination of Volatile Phenol by 4-AminoAntipyrine Spectrometric Method with Potassium persulfate as Oxidant
YE Kaixiao, TONG Tianzhe, LIANG Liuling, HONG Xin
(Guangxi Ecological and Environmental Monitoring Centre)
摘要
图/表
参考文献
相似文献
本文已被:浏览 31次   下载 44
投稿时间:2020-08-11    修订日期:2020-08-29
中文摘要: 在 pH 值为10.0±0.2的缓冲溶液中,以过硫酸钾溶液作氧化剂,用经乙醇和正己烷(1+4)混合溶液提纯的4-氨基安替比林(4-AAP)作显色剂,采用三氯甲烷分光光度法测定地表水中挥发酚。结果表明,经乙醇和正己烷(1+4)混合溶液提纯的4-AAP,损失较少,且纯度较高,有利于准确配制4-AAP溶液。此外,稳定、无色的过硫酸钾溶液代替稳定性差、有毒的铁氰化钾溶液作氧化剂,有利于降低空白值,且显色稳定,方法检出限为0.3μg/L,满足标准方法的要求。本方法用于测定地表水中的挥发酚,平均加标回收率为96.0%。
Abstract:In the buffer solution with pH 10.0±0.2, potassium persulfate solution was used as oxidant,volatile phenol in surface water was determined by spectrophotometric method with 4-AAP purified by the mixed solution of ethanol and hexane(1 + 4).The results showed that 4-AAP purified by the mixed solution of ethanol and hexane(1 + 4) had less loss and higher purity, which was beneficial to the accurate preparation of 4- AAP solution. In addition,the stable and colourless potassium persulfate solution was used as oxidant instead of potassium ferricyanide solution,which is favorable to reduce the blank value,and the color is stable.The detection limit was 0.3μg/L, which met the requirements of the national standard method.Volatile phenol in surface water was determined by this method with 96.0% of average standard addition recovery.
文章编号:     中图分类号:    文献标志码:
基金项目:广西自然科学基金重大项目“西江流域水环境重金属污染机制与调控”(2013GXNSFEA053001)资助。
引用文本:
叶开晓,童天喆,梁柳玲,洪欣.过硫酸钾氧化4-氨基安替比林光度法测定地表水中挥发酚[J].中国无机分析化学,2021,11(2):26-30.
YE Kaixiao,TONG Tianzhe,LIANG Liuling,HONG Xin.Determination of Volatile Phenol by 4-AminoAntipyrine Spectrometric Method with Potassium persulfate as Oxidant[J].Chinese Journal of Inorganic Analytical Chemistry,2021,11(2):26-30.

我们一直在努力打
造,精品期刊,传
播学术成果

全国咨询服务热线
86-10-63299759

杂志信息

期刊简介

相关下载

联系我们

电话:010-63299759

传真:010-63299754

QQ:XXXXXXX

Email:zgwjfxhx@163.com

邮编:100160

地址:北京市南四环西路188号总部基地十八区23号楼

关注微信公众号