Determination of oxalate, sulfate and nitrate in honey and honeydew by ion-chromatography.
An ion chromatographic method for determining the anions oxalate, sulfate and nitrate in honey and honeydew samples is described. To prevent matrix interference and to isolate the anions a clean-up step using solid-phase extraction on anionic cartridges and eluting with a 0.01 M chromate solution is recommended. The anions are separated on an anionic column with a mobile phase of borate-gluconate buffer and using conductimetric detection. The method is applied to the analysis of samples from different botanical origin.
del Nozal
M J
MJ
Analytical Chemistry Department, Faculty of Sciences, University of Valladolid, Spain.
Bernal
J L
JL
Diego
J C
JC
Gómez
L A
LA
Ruiz
J M
JM
Higes
M
M
D002138:Calibration; D002853:Chromatography, Liquid / Q000379:methods*; D005638:Fruit / Q000737:chemistry*; D006722:Honey / Q000032:analysis*; D009566:Nitrates / Q000032:analysis*; D019815:Oxalic Acid / Q000032:analysis*; D012680:Sensitivity and Specificity; D013431:Sulfates / Q000032:analysis*
D009566:Nitrates; D013431:Sulfates; D019815:Oxalic Acid