Simultaneous Determination of Nitrate and Nitrite in Saliva and Foodstuffs by Non-suppressed Ion Chromatography with Bulk Acoustic Wave Detector.

2001 ◽  
Vol 17 (4) ◽  
pp. 495-498 ◽  
Author(s):  
Bing-Sheng YU ◽  
Po CHEN ◽  
Li-Hua NIE ◽  
Shou-Zhuo YAO
Keyword(s):  
Acoustic Wave ◽  
Simultaneous Determination ◽  
Ion Chromatography ◽  
Bulk Acoustic Wave ◽  
Wave Detector ◽  
Nitrate And Nitrite

scholarly journals Use of Griess Reagent Containing Vanadium(III) for Post-Column Derivatization and Simultaneous Determination of Nitrite and Nitrate in Baby Food

2006 ◽  
Vol 89 (2) ◽  
pp. 447-451 ◽  
Author(s):  
John A Casanova ◽  
Lois K Gross ◽  
Sarah E McMullen ◽  
Frank J Schenck
Keyword(s):  
Simultaneous Determination ◽  
Ion Chromatography ◽  
Chromatographic Method ◽  
Detection System ◽  
Baby Food ◽  
Spectrophotometric Detection ◽  
Griess Reagent ◽  
Aoac Method ◽  
Nitrate And Nitrite

Abstract An ion chromatographic method with post-column derivatization and spectrophotometric detection is presented for the determination of nitrate and nitrite (NOx) in baby food. NOx residues found naturally or added as preservatives were extracted from baby foods and determined by using ion chromatography with post-column derivatization and spectrophotometric detection. Nitrate was reduced to nitrite online by post-column reduction using vanadium(III) chloride and heat. Nitrite reacted with Griess reagent to produce a dye that was detected at 525 nm. The use of V(III) and heat to promote the reduction of nitrate to nitrite online is a novel feature of this detection system. The determination of incurred NOx residues in samples by using AOAC Method 993.03 yielded results comparable to those obtained by ion chromatography with spectrophotometric detection. The toxic and carcinogenic metal cadmium used in the AOAC Method to reduce the nitrate to nitrite was avoided. The proposed method provides simultaneous determination of nitrate and nitrite. Average recoveries of nitrate and nitrite residues ranged from 82 to 107 for fortification levels of 25400 ppm.

Determination of Iodide by Ion Chromatography with Series Bulk Acoustic Wave Detection

1998 ◽  
Vol 58 (1) ◽  
pp. 58-66 ◽  
Author(s):  
Xiaorong Yang ◽  
Po Chen ◽  
Wanzhi Wei ◽  
Shouzhuo Yao
Keyword(s):  
Acoustic Wave ◽  
Ion Chromatography ◽  
Bulk Acoustic Wave ◽  
Wave Detection

Simultaneous determination of ammonium and six alkylamines in cosmetics by ion chromatography

2010 ◽  
Vol 28 (7) ◽  
pp. 702-707 ◽  
Author(s):  
Zhixiong ZHONG ◽  
Gongke LI ◽  
Binghui ZHU ◽  
Zhibin LUO ◽  
Ximei WU
Keyword(s):  
Simultaneous Determination ◽  
Ion Chromatography
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