提出用大口径毛细管顶空进样气相色谱法对聚氯乙烯树脂中十亿分之一级残留氯乙烯含量的测量方法。
The test method for determining residual vinyl chloride monomer content in parts per billion level in PVC resin by capillary column gas chromatography headspace technique is suggested.
结论顶空毛细管气相色谱法可用于控制新陈皮苷二氢查尔酮的质量。
Conclusion The headspace capillary GC method can be used to control the quality of neohesperidin dihydrochalcone.
采用顶空单液滴微萃取样品处理方法分离富集水中苯系物，用气相色谱法进行测定。
Benzene homologues in water were separated and enriched by head-space single-drop microextraction and determined by gas chromatography.
方法：采用顶空毛细管气相色谱法，以标准溶液加入法测定三七提取物中有机溶剂残留量。
Methods: The samples were injected into HP-INNOWAX capillary column by headspace sampler and analyzed with FID detector using standard addition method.
方法：采用顶空毛细管气相色谱法，以标准溶液加入法测定三七提取物中有机溶剂残留量。
Methods: The samples were injected into HP-INNOWAX capillary column by headspace sampler and analyzed with FID detector using standard addition method.
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