DB43/T 2957-2024 水质 高氯酸盐的测定 离子色谱法

ICS13.020.40

CCSZ60

43

湖南省地方标准

DB43/T2957—2024

水质高氯酸盐的测定离子色谱法

Waterquality—Determinationofperchlorate—Ionchromatography

2024-05-13发布2024-07-13实施

湖南省生态环境厅

发布

湖南省市场监督管理局

DB43/T2957—2024

目次

前言························································································································Ⅲ

1范围·····················································································································1

2规范性引用文件······································································································1

3方法原理···············································································································1

4干扰及消除············································································································1

5试剂和材料············································································································1

6仪器和设备············································································································2

7样品·····················································································································2

8分析步骤···············································································································3

9结果计算与表示······································································································4

10准确度·················································································································4

11质量保证和质量控制······························································································5

12废物处置··············································································································5

13注意事项··············································································································5

附录A（资料性）高氯酸盐参考色谱图··········································································6

附录B（资料性）方法准确度······················································································7

I

DB43/T2957—2024

DB43/T2957—2024

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由湖南省生态环境厅提出并归口。

本文件起草单位：湖南省生态环境监测中心、湖南省岳阳生态环境监测中心、湖南省衡阳生态环境

监测中心、国检测试控股集团湖南华科科技有限公司、湖南省环境保护科学研究院。

本文件验证单位：湖南省株洲生态环境监测中心、湖南省永州生态环境监测中心、湖南水科检验检

测有限公司、湖南省常德生态环境监测中心、湖南省邵阳生态环境监测中心、湖南省怀化生态环境监测

中心、核工业二三O研究所、湖南省郴州生态环境监测中心、江西省生态环境监测中心、四川省成都生

态环境监测中心站、长沙市浏阳生态环境监测站。

III

DB43/T2957—2024

DB43/T2957—2024

水质高氯酸盐的测定离子色谱法

警告：实验室中使用的高氯酸盐、甲醇等化学试剂对人体健康有害，操作时应按规定要求佩戴防护器具，避免接触

皮肤和衣物。

1范围

本文件规定了测定水中高氯酸盐的离子色谱法。

本文件适用于地表水、地下水、生活污水和工业废水中高氯酸盐的测定。

当进样体积为500μl，采用碳酸盐淋洗体系时，方法检出限为0.004mg/L，测定下限为0.016mg/L；

当进样体积为500μl，采用氢氧根淋洗体系时，方法检出限为0.005mg/L，测定下限为0.020mg/L。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，

仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本

文件。

HJ91.1污水监测技术规范

HJ91.2地表水环境质量监测技术规范

HJ164地下水环境监测技术规范

HJ494水质采样技术指导

3方法原理

样品中的高氯酸根离子经阴离子色谱柱交换分离后，通过电导检测器检测，根据保留时间定性，采

用峰高或峰面积定量。

4干扰及消除

4.1若发生色谱峰重叠，可通过降低淋洗液浓度、降低流速方式实现有效分离。

4.2水样中较高浓度的金属离子、氯离子、硫酸根离子、疏水性有机物等会影响柱效，缩短色谱柱使

用寿命。可使用Na型离子净化柱消除或降低样品中的金属离子的影响；使用Ag型离子净化柱消除或降

低样品中氯离子的影响；使用Ba型离子净化柱消除或降低硫酸根离子的影响；使用C18或同类净化柱消