查询词典 headspace

The headspace gas chromatography was used to determin the ethanal content in the production process of bottle grade PET chip.

论述了瓶级聚酯切片生产过程中，采用顶空气相色谱法测试切片中乙醛含量的称样量、样品处理、颗粒度、顶空热平衡时间、热平衡温度、标定及其他顶空测量参数的优化。

A static headspace GC-MS method was used to detect sulfur in the fumatory Radix Bupleuri,the authentic samples free of sulfur was detected as reference.

运用静态顶空毛细管气相色谱-质谱联用技术进行检测市售柴胡是否经硫黄熏蒸，并从产地采集未经硫黄熏蒸的柴胡作为阴性对照药材与市售柴胡进行比较。

Then the fiber was transferred to a 4 mL vial which was filled with 100 μL of trifluoroacetic anhydride and stood 30 sec for headspace extraction. Afterward the fiber was transferred again to another blank 4 mL vial and stood 10 min for on-fiber derivatization before the analysis with GC/MS. The absorption-time profiles for both furoic acid and creatinine were examined.

有关尿中肌酸酐的量测，首先亦使用65μm PDMS/DVB纤维，在电磁搅拌转速1200rpm下以直接样本接触方式吸附60秒后，将已吸附肌酸酐的纤维挪至装有100μL无水三氟醋酸的4mL样本瓶中顶空吸附30 sec，再将纤维挪至另一个空白的样本瓶并静置10min（以利衍生物trifluoroacetamide的生成），最后再以气相层析质谱仪进行分析。

Plastics/rubber - Polymer dispersions and rubber latices; Determination of residual monomers and other organic components by capillary-column gas chromatography - Part 2: Headspace method ISO

塑料/橡胶。聚合物分散体和橡胶胶乳。用毛细管柱气相色谱法测定残留单体和其他有机成分。第2部分：顶空法

A GC headspace injection method for the determination of residual organic solvents such as methanol, ethanol, acetonitrile, dichloromethane, ethylacetate, 4 methyl 2 pentanone, toluene, DMF, chloroform and tetrahydrofuran in tazobactam was established.

建立了气相色谱顶空进样法测定三唑巴坦中甲醇、乙醇、乙腈、二氯甲烷、乙酸乙酯、甲基异丁基酮、甲苯、N ，N′-二甲基甲酰胺、氯仿和四氢呋喃等有机溶剂的残留量。

Headspace ; chloroform ; tetrachloro\|methane ; water

顶空法；氯仿；四氯化碳；水质

Methods For the mild solubility of chloroform and tetrachloromethane in drinking water, chloroform and tetrachloromethane were analysed by static headspace gas chromatography with DB-5, Rtx-1 and DB-1 capillary columns and electron capture detector, external standard method was used for quantification.

利用氯仿和四氯化碳在水中的弱溶解性，采用静止顶空气相色谱法进行分析，使用DB-5、Rtx-1和DB-1毛细管柱和电子捕获监测器测定，外标法定量。

This paper investigates that the different composition of the headspace gas and polluted sediment slurries can affect the ratios of degradation on benzoic acid, toluic acid and phthalic acid isomers. We found that a sediment slurry which has been polluted can develop a stronger microbial degradation.

此篇文章主要是探讨不同上层气体之组成和被污染过之底泥可影响苯甲酸、甲基苯甲酸异构物及苯二酸异构物被分解的速率，我们发现被污染过之底泥可发展出较强之微生物降解力。

It is important to protect the wine from oxidation (usually done by sparging the headspace with inert gas) and to regularly taste check the wine (for polymerisation and H2S development) during this period.

葡萄酒是重要保障氧化(通常所做的顶与惰性气体喷射)和定期检查葡萄酒品尝在此期间。

A method for the determination of residual ethyl acetate in green tea extract has been studied by headspace gas chromatography in order to set up an analysis method.

采用顶空气相色谱法对绿茶提取物中乙酸乙酯残留溶剂的分析方法进行了研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。