TY - JOUR T1 - A Rapid Flame Photometric Procedure for Determining Calcium in Wine JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 203 LP - 205 DO - 10.5344/ajev.1966.17.3.203 VL - 17 IS - 3 AU - M. G. Farey AU - C. C. H. Macpherson Y1 - 1966/01/01 UR - http://www.ajevonline.org/content/17/3/203.abstract N2 - The separation of calcium from wine as oxalate prior to determination by flame photometer, is described. The depressive effect of oxalate on the emission intensity at 622 mµ has been eliminated at the temperature of the air-coal gas flame by dissolving the calcium oxalate in perchloric acid.The method is rapid. Several samples can be processed in an hour, and the results are in good agreement with those obtained from the established ashing-EDTA titration method. ER -