顶空

  • 网络Headspace;Head Space;SHS
顶空顶空
  1. 静态顶空进样气相色谱法测定水中CS2的研究

    Static headspace sampling determination of disulfide carbon in water by gas chromatography

  2. 顶空GC-MS法测定去甲斑蝥素中的有机溶剂残留

    Determination of Residual Organic Solvents in Norcantharidin by Headspace GC-MS

  3. 飞机尖啸着飞过顶空。

    A plane whizzed overhead .

  4. 同时对该反应型香料和增香米的顶空气体进行了GCMS分析。

    The steam volatile of the reaction flavor and flavoring rice was determined by GC MS analysis .

  5. 顶空固相微萃取与GC-MS联用法分析淡水鱼肉气味成分

    Analysis Odors of Freshwater Fish Meat by HS-SPME Combined with GC-MS

  6. 水蒸气蒸馏提取与粉末顶空直接进样GC-MS分析吉林细辛的挥发性成分

    GC-MS Analysis for Volatile Compounds of Herba Asari from Jilin Province Obtained by Steam Distillation or Headspace Injection

  7. SPME在烟用料液顶空成分分析中的应用

    Application of SPME in Analysis of Headspace Constitutes in Tobacco Casing

  8. 研究了用顶空液相微萃取GC-MS法测定水中的痕量氯苯类有机污染物。

    A method for determination of chlorobenzenes in water by headspace single-drop liquid-phase microextraction with GC-MS detection was investigated .

  9. 介绍了一种通过顶空气相色谱技术测定超低醇解度聚乙烯醇(PVA)醇解度的方法。

    To introduce a method for the determination of the alcoholysis degree of PVA at extra-low alcoholysis by headspace gas chromatography .

  10. 顶空固相微萃取法(SPME)在红葡萄酒香气成分测定中的应用研究

    Rapid determination of aroma components in Cabernet sauvignon wine by HS-SPME and GC-MS

  11. 研究了甘油和乙醇的快速测定方法,建立了发酵液中的甘油含量的HPLC法,及乙醇的气相色谱顶空进样检测法。

    The glycerol concentration in the fermentation liquid was determined by HPLC ; the concentration of ethanol was measured by headspace GC . The method was simple and accurate .

  12. 报道利用顶空进样-GC/MS技术鉴定物质中挥发性成份的方法,鉴定出XY挥发性成份。

    A method for the determination of volatile constituents in adhesive by headspace GC / MS was proposed .

  13. 采用顶空气相色谱(GLC-HS)分析技术测定了代森锰锌、ND-901中代森锰锌在大棚黄瓜上的残留动态。

    The residual dynamics of mancozeb and mancozeb in ND-901 in plastic house cucumbers by a headspace chromatography were presented .

  14. 国内对DWI的检测主要还是使用一些常规方法,即用手持式呼气酒精测试仪和顶空气相色谱仪血液酒精检验。

    A hand-held breath alcohol tester and headspace gas chromatograph blood alcohol tester are always used by the police .

  15. 探讨了色谱柱、固上顶空法等因素对VCM测定的影响;

    The authors also discussed the impact of chromatographic pillar and empty headspace method on VCM measurement .

  16. 经动态顶空吸附雪里蕻腌菜挥发性组分并进行组分离,在GCMS图谱上进行组分的分离鉴定,其特征风味在碱性组分中嗅感强烈。

    The application of dynamic headspace trapping using a glass column trap contained HayeSep Q as absorbent combined with GC MS technique for the volatile flavor analyses and identification was studied .

  17. 试验采用大口径HP-快速GC残留溶剂柱为分离柱,对顶空平衡温度、平衡时间对残留有机溶剂乙酸乙酯测定的影响进行了分析研究。

    A wide bore HP-fast GC residual solvent column was performed , and the effects of the equilibrium temperature and equilibrium time on the determination of ethyl acetate were studied .

  18. 采用静态顶空(SHS)法提取大葱根系挥发性成分,并用气相色谱-质谱联用(GC-MS)技术分析其构成。

    Volatile compounds in Welsh onion roots were extracted by static headspace ( SHS ) and identified by gas chromatography-mass spectrometry ( GC-MS ) .

  19. 膜法分级纯化姬松茸子实体多糖的研究利用顶空GCMS技术对姬松茸新鲜子实体和固体发酵的菌丝体挥发性风味物质进行了分析。

    Application of membrane technique to separating and purifying polysaccharides from fruit bodies of Agaricus blazei The volatile flavor compounds in Agaricus blazei fruit bodies and mycelia were analyzed by head space analysis GC-MS.

  20. 以多种挥发性有机污染物作为混合标准液,分别应用吹扫捕集气相色谱/质谱(GC-MS)和固相萃取顶空气相色谱/质谱(GC-MS)进行测定,针对挥发性有机污染物代表进行了各项指标测定。

    Based on the research of 54 VOCs , the technique of purge-and-trap coupling to GC / MS were compared with SPE headspace coupling to GC / MS.

  21. 以PorapakQ作吸附剂,吸附蛹油的顶空气体,捕集蚕蛹异味。

    Headspace vapours above the silk worm chrysalid oil were collected , using porapak-Q as absorbents to trap the off flavour .

  22. 利用顶空固相微萃取(HS-SPME)对黄酒中的挥发性和半挥发性成分进行萃取。

    The volatile and semi-volatile compounds in yellow rice wine were extracted by HS-SPME .

  23. 顶空瓶平衡温度70℃,平衡时间60min;

    The optimized equilibrium temperature was 70 ℃ and the equilibrium time was 60 min.

  24. 气相顶空色谱法测定原料样6-APA中的残留溶媒

    Determination of Residue Solvent Content in 6-APA Raw Material by GC with Static Head-space Injection

  25. 麦芽DMSP顶空气相色谱分析方法的研究与优化

    Study and Optimization on the Method for Dimethyl Sulfide Precursor in Malt by Headspace Gas Chromatography

  26. 两种轻烃分析方法(PTV切割反吹和顶空)的对比研究

    Contrastive Study of Two Methods (" Programmed Temperature Vaporization with Back Flushing " and " Head Space ") for Light Hydrocarbon Analysis

  27. 前言:本实验采用顶空固相微萃取(SPME)及气相色谱-质谱联用(GC-MS)研究了新鲜荔枝酒经高强电场处理后其醇,酸,酯等成分的变化情况。

    The content variations of alcohol , acid and ester in fresh litchi wine after being treated by high voltage electric field ( HVEF ) were assayed by SPME-GC-MS.

  28. 运用静态顶空进样与气相色谱-质谱联用(GC-MS)技术,对气味特异的单株进行挥发性有机物质的动态测定,掌握其成分和发生规律。

    The releasing dynamics of volatile organic compounds in different trees were determined in order to master the composition and releasing discipline by automatic static headspace and gas chromatography-mass spectrometry ( GC-MS ) technique .

  29. 通过对香气成分提取方法的分析比较得出,同时蒸馏提取法(SimultaneousDistillation-Extraction)和静态顶空进样法(Static-Head-Space)结合可以得到很好的提取效果。

    Through analyzing and comparing the distilling method for aroma components , integrated using Simultaneous Distillation-Extraction and Static-Head-Space resulted the best distilling effect .

  30. 为克服SDE法分析茶叶香气成分的局限性,采用顶空吸附法对速溶绿茶加工过程中香气的变化进行了跟踪分析。

    To reduce the influences on aroma by SDE , the changes of aroma of instant green tea during the process by headspace absorption were studied .