Abstract − Analytical Sciences, 17(4), 495 (2001).
Simultaneous Determination of Nitrate and Nitrite in Saliva and Foodstuffs by Non-suppressed Ion Chromatography with Bulk Acoustic Wave Detector
Bing-Sheng YU,* Po CHEN,** Li-Hua NIE,** and Shou-Zhuo YAO**
*Department of Chemistry, Zhanjiang Normal College, Zhanjiang 524048, Guangdong, China
**Chemistry and Chemical Engineering College, Hunan University, Changsha, 410082, China
**Chemistry and Chemical Engineering College, Hunan University, Changsha, 410082, China
In the present paper, nitrate and nitrite in foodstuffs and saliva were simultaneously determined using a non-suppressed ion chromatography (IC) method with a bulk acoustic wave sensor (BAW) as detector, and 1.5 mmol/L potassium hydrogenphthalate (KHP) as mobile phase. The IC-BAW method is simple, rapid and accurate. The determination limits for nitrite and nitrate are 0.20 and 0.30 mg/L, respectively. The IC-BAW is comparable and agrees with the conventional spectrophotometric method for nitrite and nitrate determination.
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