Comparative analysis of EPA and DHA in fish oil nutritional capsules by GC-MS

Table 1 The original sources, prices and contents of EPA and DHA in ten batches of fish oil capsule samples bought in Hong Kong ( n = 3)

Sample no.	Labelled origin	Price (HK$/g)	Labelled contents (mg/g)		Determined contents (mg/g)
Sample no.	Labelled origin	Price (HK$/g)	EPA	DHA	EPA	DHA
1^a	USA	1.98			200.45	201.45
2	Australia	1.68			148.05	137.15
3	USA	1.53			509.16	501.18
4	USA	1.49			418.54	645.70
5	Australia	1.02	180	120	132.44	123.26
6	USA	0.98	180	120	361.36	419.73
7	New Zealand	0.65			208.42	204.72
8	USA	0.64			166.42	125.33
9	USA	0.34			39.52	35.14
10	USA	0.23			112.19	153.11

^aSamples are listed in order of decreasing price; that is, the most expensive are listed first.

ISSN: 1476-511X