Benzoic acid and sulphate ions in pesticide Lukangning are separated and determined on an ion chromatographic system with conductivity detector. The eluent contains 0. 75 mmol/L phathalic acid (pH4. 35) with a flow ra...Benzoic acid and sulphate ions in pesticide Lukangning are separated and determined on an ion chromatographic system with conductivity detector. The eluent contains 0. 75 mmol/L phathalic acid (pH4. 35) with a flow rate of 1. 5 mL/min. The separation column is a Shim-pack IC-A1 (4. 6mm id ×10cm) and the oven temperature is controlled at 40℃. The detection limits are 1. 3μg/mL and 0. 38μg/mL, the relative standard deviations 1. 82% and 1.24% and the recoveries 94. 6% and 95.2% for benzoic acid and sulphate ions, respectively.展开更多
文摘Benzoic acid and sulphate ions in pesticide Lukangning are separated and determined on an ion chromatographic system with conductivity detector. The eluent contains 0. 75 mmol/L phathalic acid (pH4. 35) with a flow rate of 1. 5 mL/min. The separation column is a Shim-pack IC-A1 (4. 6mm id ×10cm) and the oven temperature is controlled at 40℃. The detection limits are 1. 3μg/mL and 0. 38μg/mL, the relative standard deviations 1. 82% and 1.24% and the recoveries 94. 6% and 95.2% for benzoic acid and sulphate ions, respectively.
