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  Calcium in 20 ppm standard solution of Calcium
 Log #676 Titration Application Note
 The calcium content in a 20 ppm standard solution determined via an inicator titration using the Orion 960 Autochemistry system and an Orion 9329BN cupric combination electrode. The standard solution also contains 2 ppm cupric as the indicator, EGTA is used as the titrant and the endpoint is determined using a first derivative technique.