Determination of melamine in air by high-performance liquid chromatography with ultraviolet detection.
An air sampling and liquid chromatographic separation method for melamine is described. Collection efficiency on 13-mm glass fibre filters was determined. No breakthrough was detected under a contamination level of 0.4 mg/m3 for 40-1 air samples. The detection limit for a 60-1 air sample at 215 nm is 450 ng/mg. Retention behaviour of melamine on four different reversed-phase columns is described. Column packings tested are Spherisorb ODS, Supelcosil ODS, Spherisorb CN and PRP-1. Results of electrochemical detection studies are discussed.
Department of Industrial Hygiene, University of Kuopio, Finland.
J
J
Pukkila
K
K
Peltonen
T
T
Savolainen
D000388:Air / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D004563:Electrochemistry; D006863:Hydrogen-Ion Concentration; D013056:Spectrophotometry, Ultraviolet; D014227:Triazines / Q000032:analysis*
D014227:Triazines; C011907:melamine