DETERMINATION OF NITRATE AND NITRITE IN TAP WATER AND VEGETABLES BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY

被引：10

作者：

BLANCO, D ^{[1
]}

MARTINEZ, L ^{[1
]}

MANGAS, JJ ^{[1
]}

DAPENA, E ^{[1
]}

GUTIERREZ, D ^{[1
]}

机构：

[1] INST EXPT & PROMOC AGRARIA,ASTURIAS,SPAIN

来源：

JOURNAL OF LIQUID CHROMATOGRAPHY | 1995年 / 18卷 / 12期

关键词：

D O I：

10.1080/10826079508013973

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A method is presented for the simultaneous determination of nitrate and nitrite by high performance liquid chromatography (HPLC) with an anion exchange (Partisil SAX) column, a 0.030 M potassium dihydrogen orthophosphate/phosphoric acid buffer of pH 3.5 mobile phase and UV detector. Without using a preconcentration system the detection limits are 0.2 ng for nitrate and 1 ng for nitrite. A suitable extraction procedure has been established for its application to the analysis of tap water, lettuce and apple tree leaves. The reproducibility of the method, calculated as the relative standard deviations in the optimum range, is always less than 2% for nitrates and 5% for nitrites.

引用

页码：2445 / 2456

页数：12

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