2) Manul Head Space Method
手动顶空进样法
3) headspace injection
顶空进样
1.
A capillary column headspace injection method for the determination of residual methanol, tetrahydrofuran, dichloroethane, pyridine and toluene in reloxifene hydrochloride was established.
采用毛细管柱顶空进样法 ,以二烷为内标 ,同时测量盐酸雷洛昔芬中甲醇、四氢呋喃、二氯乙烷、吡啶及甲苯等 5种溶剂的残留量。
2.
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。
3.
Methods The volatile compounds obtained by steam distillation or direct headspace injection were analyzed by GC-MS.
方法采用传统的水蒸气蒸馏提取挥发油,和顶空进样直接采集挥发性成分2种方法,对吉林细辛中的挥发性成分进行GC-MS分析。
4) Headspace
[英]['hedspeis] [美]['hɛd,spes]
顶空进样
1.
A method for the determination of volatile constituents in adhesive by headspace GC/MS was proposed.
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。
2.
Determination of residual solvent in medicine by wide-bore capillary Headspace-Gas Chromatography(HS-GC)is a rapid,simple and high-efficient method,it is widely applicated to determinate residual solvent in medicine.
本文通过建立原料药肝素钠、烟酸占替诺、福辛普利钠和盐酸头孢唑兰中残留溶剂分析测定方法,阐述了顶空进样一大口径毛细管气相色谱法检测药物中残留溶剂的应用,通过研究建立方法,探讨了顶空进样大口径毛细管气相色谱法应用开发和实际应用问题。
3.
METHODS The headspace GC system consisted of a capillary column,polymerization or cross linking polyethylene glycol as the solid phase,and FID as the detector.
方法以聚乙二醇为固定相的毛细管色谱柱,氢火焰离子检测器,顶空进样方式,柱温:起始温度为60℃,程序升温起始温度为60℃,保持16 min,以每分钟20℃的升温速率升至200℃,保持2 min。
5) Headspace Sampling
顶空进样
1.
Determination of the residual organic volatile solvents in block cream by gas chromatography with headspace sampling;
气相色谱顶空进样法测定防晒霜中有机溶剂残留量
2.
Determination of three residual organic volatile solvents in cefepime by gas chromatography with headspace sampling;
气相色谱顶空进样法测定头孢吡肟中3种有机物残留量
3.
In concentrated sulfuric acid TFA may change into MTFA with dimethyl sulfate(DMS),so it is possible to obtain the mass concentration of TFA in water samples by determining the mass concentration of MTFA with headspace sampling and GC-MS,using the volatility of MTFA.
笔者建立了测定TFA质量浓度的实验方法:将样品中的三氟乙酸与硫酸二甲酯在浓硫酸介质中衍生为三氟乙酸甲酯(MTFA),利用MTFA的易挥发性,以顶空进样和气相色谱-质谱联用的方法检测样品中MTFA的质量浓度,进而得到环境水样中TFA的质量浓度。
6) headspace sampler
顶空进样
1.
The headspace sampler of Agilent 7694E was equilibrated at 85℃ for 40min.
min-1,分流比为2∶1,柱温为50℃;检测器为FID,检测器温度250℃;Agilent6890NGC仪和7694E顶空进样器,顶空瓶加热温度为85℃,加热40 min;进样口温度为200℃。
2.
By using distilled water as absorbing liquid to absorb acetone,methanol,ethanol and isopropanol in ambient air,and using headspace sampler in Gas chromatography and then separating them by capillary column,FID was used as detector.
采用蒸馏水为吸收液,吸收大气中的丙酮、甲醇、乙醇和异丙醇,在气相色谱仪上顶空进样,经毛细管柱分离,以FID为检测器,可以准确地测出大气中的丙酮、甲醇、乙醇和异丙醇,以保留时间定性,峰高定量。
补充资料：顶空分析法(headspace analysis)
分子式：
CAS号：
性质：又称顶空分析法(headspace analysis)。顶端空间的取样方法和气相色谱分析相结合的联用技术。将液体或固体试样置于有一定空间的密闭系统中，待达到热力学平衡后，取其顶端气相组分进行色谱分析。是间接测定试样中挥发性组分的一种方法。
CAS号：
性质：又称顶空分析法(headspace analysis)。顶端空间的取样方法和气相色谱分析相结合的联用技术。将液体或固体试样置于有一定空间的密闭系统中，待达到热力学平衡后，取其顶端气相组分进行色谱分析。是间接测定试样中挥发性组分的一种方法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条