Simultaneous determination of nitrate and nitrite in saliva and foodstuffs by non-suppressed ion chromatography with bulk acoustic wave detector.
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.
Yu
B S
BS
Department of Chemistry, Zhanjiang Normal College, Guangdong, China.
Chen
P
P
Nie
L H
LH
Yao
S Z
SZ
D002852:Chromatography, Ion Exchange / Q000379:methods*; D002853:Chromatography, Liquid / Q000379:methods*; D004563:Electrochemistry / Q000379:methods; D005519:Food Preservation; D008460:Meat / Q000032:analysis*; D008461:Meat Products / Q000032:analysis*; D009566:Nitrates / Q000032:analysis*; D009573:Nitrites / Q000032:analysis*; D015203:Reproducibility of Results; D012463:Saliva / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013696:Temperature; D014675:Vegetables / Q000737:chemistry*
D009566:Nitrates; D009573:Nitrites