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zb6824785: 金币+20, 翻译EPI+1, ★★★★★最佳答案, Thanks for your help! 2014-02-28 12:29:02
1 Double and multiple phase equilibration method
Draw in 25ml of water sample with a 50ml modified glass syringe as equilizer, then draw in 25ml of high purity nitrogen, seal with silicone rubber packing, shake manually at room temperature for 1min to equilibrate, inject 200μl of gas with asyringe, record the chromatograms.Then open the seal packing to exhaust upper headspace gas to the outside, draw in 25ml of nitrogen, shake to equilibrate, and repeat this several times.
2楼2014-02-28 10:41:08
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