“…The classic method for calcium involves its precipitation as the oxalate and subsequent determination by gravimetric or volumetric procedures. The conditions for separation of calcium from magnesium in this manner have been further investigated by several workers (153,161,261,295). Based on studies with a radioactive indicator Shvedov (261) reports that coprecipitation of magnesium with calcium oxalate increases in the temperature range 20°to 100°C.…”
“…The classic method for calcium involves its precipitation as the oxalate and subsequent determination by gravimetric or volumetric procedures. The conditions for separation of calcium from magnesium in this manner have been further investigated by several workers (153,161,261,295). Based on studies with a radioactive indicator Shvedov (261) reports that coprecipitation of magnesium with calcium oxalate increases in the temperature range 20°to 100°C.…”
“…In the course of time a large number of publications on calciummagnesium determination have appeared (1,7,12,15,21). Further papers of less interest are not mentioned here.…”
RECENT years there has been marked interest in instrumental analysis as compared to volumetric and gravimetric methods. Strong (314) states, "The fact that 50% of 1946 analytical papers are on instrumental methods of analysis in-157
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