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Simple, sensitive and selective sequential injection analysis (SIA) method for the analgine determination has been developed on the basis of fast reaction between analgine and 18-molybdo-2-phosphate heteropoly anion (18-MPA). Under found optimal conditions (0.01 M HCl, C(18-MPA) = 2 mmol/L) linear calibration curve was obtained over the range from 0.5 to 80 mg/L of analgine, and detection limit (S/N = 3) was 0.2 mg/L. The proposed SIA method has high sample throughput of 45 h -1  and small reagent consumption (0.08 mL). The procedure was successfully applied to the analysis of pharmaceuticals.

vìsnik dnìpropetrovsʹkogo unìversitetu. serìâ hìmìâ

Спектрофотометричне визначення анальгіну методом послідовного інжекційного аналізу в фармацевтичних препаратах з використанням як хромогенного реагенту 18-молібдо-2-фосфорного гетерополіаніону