【摘要】 提出了在强酸性条件下 ,以薄层树脂相分光光度法测定磷。此方法灵敏度高 (ε70 5=9 7× 10 5) ,精密度好 (测含磷1μg/mL样品 6次 ,RSD =0 83 % ) ,线性范围为 0 1～ 1 2 μgP/mL ,回收率达 96 0 %～ 99 4%。更多还原

【Abstract】 The determination of P by thin layer resin phase spectrophotometry in the presence of strong acid was reported The apparent molar absorptivity is 9 7×10 5L·mol -1 ·cm -1 ,and the relative standard deviation is 0 83%(n=6) for 1μg P/mL The sensitivity is 10 times higher than that by liquid phase spectrophotometry,the linear range(volume 25mL)and the recoveries are 0 1-1 2μg/mL and 96 0%-99 4%,respectively更多还原