Table 1.

Summary of Nutritional Supplement products investigated for Melamine

		Overall samples acquired in South Africa	Produced and purchased in South Africa	Imported and purchased in South Africa
		(n = 138)	(n = 27)	(n = 50)
Qualitative Assessment Screen	Total No.	64	22	29
	Positives (%)	47	82	58
Estimate Concentration (*)	≥ LLOQ (ng/g) Low	218	513	218
	≥ LLOQ (ng/g) High	127030	127030	76419
	Median (ng/g)	6031	8860	6940

* 1ppm = 1mg/kg = 1000ng/g = 1 μg/g