|Table of Contents|

Determination of PO3-3 and PO3-4 by Ion Chromatography and Its Application in Mid-Controlled Analysis of Wastewater Treatment(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2013年01期
Page:
59-63
Research Field:
化学
Publishing date:

Info

Title:
Determination of PO3-3 and PO3-4 by Ion Chromatography and Its Application in Mid-Controlled Analysis of Wastewater Treatment
Author(s):
Liu Yuan1; Zhang Yanxia1; Wang Yuping1; 2
(1.School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210097,China) (2.Nanjing University of Science and Technology,Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse,Nanjing 210094,China)
Keywords:
ion chromatography; PO3-3; PO3-4; middle-controlled analysis
PACS:
O657
DOI:
-
Abstract:
An ion chromatography analysis method was proposed for detecting PO3-3 and PO3-4 in wastewater.The mixed solution of Na2CO3/NaHCO3(4.5 mmol/L/0.8 mmol/L)was used as eluent,its flow rate was 1.00mL/min and the electrical conductivity detector was used as a detector.The results showed that the linear relationship was good(r=0.999 9)within the range of 1.00-32.00mg/L for PO3-3.The detection limit of PO3-3 was 25.90 μg/L and the relative standard deviation was 0.57%.The linear relationship was good(r=0.999 7)within the range of 1.00-32.00 mg/L for PO3-4.The detection limit of PO3-4 was 41.00 μg/L and the relative standard deviation was 1.34%.The standard addition recoveries of PO3-3 were from 94.2% to 102.0%,and those of PO3-4 were from 101.2% to 105.0%.The established testing method was used in a mid-controlled analysis of the oxidation of PO3-3 and the effects of oxidizing agent dosage,reaction temperature,and content of sulfuric acid on oxidation were investigated.

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Last Update: 2013-03-31