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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-02-26 08:58:16
À¶ÂåË®seven(RXMCDM´ú·¢): ½ð±Ò+12, ¶àлӦÖú£¡ 2014-03-15 23:10:10
RXMCDM: ·­ÒëEPI+1 2014-03-15 23:10:15
Use a column packed with octadecylsilane chemically bonded silica(4.6mm * 250mm,5¦Ìm),0.2mol/L sulfate buffer£¨prepared by dissolving 28.4g of anhydrous sodium sulfate in water and adding 2.7ml of phosphoric acid, adjusting the solution with ethanolamine to pH 2.3, diluting with water to 1000ml£©and acetonitrile£¨74:26£©as mobile phase with a flowrate 1ml /min, maintain the column temperature at 40¡æ,the detection wavelength is 214nm.Dilute a quantity of sample with 0.01mol/L HCl solution to produce a 40u/mL solution, inject 20¦ÌL into the column, record the chromatograms. Repeat the operation, using a quantity of insulin CRS.Calculate the units with respect to the peak area obtained in the chromatogram by the external standard method.
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