Table 1.

Inductively coupled plasma mass spectrometry (ICP-MS) analysis of antimony in SU-8 leachates. SU-8 substrates (60 mg) were incubated in 2 ml of each of the solvents and incubated for 72 h prior to analysis.

S. No.	Sample	Sb (ppb)
1	PBS 4 °C	7.5
2	PBS (room temp)	1.60
3	PBS 37 °C	3.5
4	PBS 43 °C	23.39
5.	Isopropanol	21.2
6.	Vegetable oil*	1.0
7.	Phosphate buffer; pH 5.50	23.4
8.	Phosphate buffer; pH 6.51	2.6

^*Leachate from vegetable oil was diluted in isopropanol (1:10).