Photometric Determination of Micro Amount of Silver in Pyrite
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Photometric determination of micro amount of silver with 5-Br-PADAP -SLS as chromogenic agent in Pyrite was studied.The complex has maximum absorption at 550 nm with a molar absorption coefficient of 6.5 x 104. The calibration curve is linear in the range of 0-1.6 ppm at pH 5.5-8. The int- erference of fifty foreign ions were tested. The range of detection is O.x- x×10-3 % for silver.
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廖克敏,葛玮, 1985. 5—Br—PADAP光度法测定黄铁矿中微量银[J]. 岩石矿物学杂志, 4(1):84~86. , 1985. Photometric Determination of Micro Amount of Silver in Pyrite[J]. Acta Petrologica et Mineralogica, 4(1): 84~86.
