顶空法富集的芳香成分中酯类化合物含量较减压蒸馏富集法高。
The headspace gathered more ester compounds in aroma composition than that of reduced pressure distillation.
方法:采用外标法顶空自动进样,在非极性弹性毛细管柱上进行分离,效果良好。
Methods: auto - injection using external standard headspace method, which make the component can be separated at the nonpolar elastic capillary column, the result is good.
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.
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.
采用顶空固相微萃取气相色谱质谱(HS SPME GC/MS)法分析饮用水中的发霉气味。
The HS SPME GC/MS method was applied to analyzing odors in drinking water.
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.
方法用DM- 624毛细管气相色谱柱,顶空进样法,FID检测器,以甲醇为内标进行测定。
METHODS the samples were injected into DM-624 capillary column by headspace sampler and analysed with FID detector using methanol as the internal standard.
方法采用HP- 624毛细管柱,顶空进样法,FID检测器,以正丙醇为内标进行测定。
METHODS The samples were injected into HP-624 capillary column by headspace sampling and analyzed by using n-propanol as internal standard with FID detector.
方法:采用外标法顶空自动进样,在非极性弹性毛细管柱上进行分离,效果良好。
Methods: Use Head- space automatic injection method, isolating with the nonpolarity flexibility capillary column, calculating with external 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.
方法:用 HP-5毛细管气相色谱柱,顶空进样,FID检测器,以标准溶液加入法进行计算。
Methods:The samples were injected into HP-5 capillary colnmn by head- space sampler and analysed with FID detector with standard addition method.
结果 采用顶空进样技术,可鉴定出侧柏叶中29个挥发性化学成分;采用水蒸气蒸馏法可鉴定出34个挥发性化学成分;
RESULTS By GC-MS, 29 volatile compounds in Platycladi Cacumen treated with head-space injection were identified, while 34 volatile compounds identified with steam distillation;
结果 采用顶空进样技术,可鉴定出侧柏叶中29个挥发性化学成分;采用水蒸气蒸馏法可鉴定出34个挥发性化学成分;
RESULTS By GC-MS, 29 volatile compounds in Platycladi Cacumen treated with head-space injection were identified, while 34 volatile compounds identified with steam distillation;
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