Determination of anions in the water reducing agent by ion chromatograph(离子色谱法测定减水剂中的阴离子)
建立一种离子色谱法同时测定减水剂中的葡萄糖酸根、氯离子、硫酸根、硫代硫酸根.样品经过稀释、C18小柱预处理后直接进样.选用shodex 52-4e阴离子交换柱分离样品,淋洗液为3.6 mmol•L-1 N2CO3,柱温50 ℃,流速0.8 mL•min-1,进样量7 µL,抑制电导检测,外标法定量,当葡萄糖酸根、氯离子、硫酸根、硫代硫酸根的质量分数分别为5.0〜100.0,0.1~30.0,1.0~50.0,1.0~50.0 mg·L-1时,与色谱峰面积呈良好的线性关系(r≥0.999 1),相对标准偏差(n=7)均小于2.5%,检出限在50.23~13.44 µg•L-1.将该方法应用于减水...
Main Authors: | ZHUBinhe(朱彬和), NIChengzhu(倪承珠), ZHAOXunyan(赵训燕), GUOWeiqiang(郭伟强), ZHUYan(朱岩) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2016-05-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2016.03.012 |
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