Bs. Yu et al., Simultaneous determination of nitrate and nitrite in saliva and foodstuffsby non-suppressed ion chromatography with bulk acoustic wave detector, ANAL SCI, 17(4), 2001, pp. 495-498
In the present paper, nitrate and nitrite in foodstuffs and saliva were sim
ultaneously determined using a non-suppressed ion chromatography (IC) metho
d with a bulk acoustic wave sensor (BAW) as detector, and 1.5 mmol/L potass
ium hydrogenphthalate (KHP) as mobile phase. The IC-BAW method is simple, r
apid and accurate. The determination limits for nitrite and nitrate are 0.2
0 and 0.30 mg/L, respectively. The IC-BAW is comparable and agrees with the
conventional spectrophotometric method for nitrite and nitrate determinati
on.