Statistical tools and approaches to validate analytical methods: methodology and practical examples | International Journal of Metrology and Quality Engineering (IJMQE)

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Table 10

Result of recovery study of cadmium quantification in bivalve molluscs using an atomic absorption spectrometry with graphite furnace method [23].

C	C_f	C_f − C	C_a	%Recovery
21.5380	31.8610	10.323	10	103.23
25.5430	33.4810	7.938	10	79.38
16.9935	28.7975	11.804	10	118.04
15.5160	23.6830	8.167	7	116.67
9.8015	16.3830	6.581	5	131.62
			Mean	109.788
			Sd	19.747
			α	0.05
			T_crit	2.78
			T_obs	12.432

C: concentration before standard additions; C_f: concentration after standard additions; C_a: concentration of standard additions.

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