石墨炉原吸收光谱法测定化探样品中超痕量铂钯

官东超

The application of graphite furnace atomic absorption spectrometry to determination of ultra-trace platinum and ultra-trace palladium in rock ore

Dong-Chao GUAN

表6 不同浓度的PTU与铂、钯回收率的关系

元素	$\frac{PTU 浓度}{g / L}$	回收率/%	元素	$\frac{PTU 浓度}{g / L}$	回收率/%
Pt	2	93.2	Pd	2	94.4
	5	94.6		5	95.7
	10	99.1		10	98.6
	15	99.2		15	99.5
	20	98.5		20	98.6
	25	99.3		25	99.1