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材料
clear glass vial
round bottom
特點
closure type screw top vial
包裝
pkg of 100 ea
外徑 × 高度
22.5 mm × 75.5 mm
容積
20 mL
接頭
thread for 18
相容性
for use with CTC PAL (Varian, Gerstel, Atas, Shimadzu)
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一般說明
这些样品瓶需要带 18mm 螺纹的专用瓶盖。标准 18-400 螺纹瓶盖不适合该样品瓶。这些样品瓶可用的瓶盖货号为 SU860101(PTFE/硅树脂,1.3mm 厚)、SU860102(PTFE/丁基橡胶,1.6mm 厚)和 SU860103(PTFE/硅树脂,1.5mm 厚)。这些瓶盖使用不锈钢材料并具有磁性。
應用
顶空瓶可用于以下用途:
- 通过自动平衡顶空气相色谱法和气相校准 (VPC),在独立分析小瓶中存在的乙酸乙酯总量的情况下,测定 0°C水中乙酸乙酯的分配系数。
- 在通过 GC-MS 开发和优化顶空 SPME 方法期间,它可用于分析药品中存在的挥发性极性残留溶剂。
- 它还可用于 C 3 和 C 4 牧草叶水的 18 O 同位素分析,在建立叶脉中的草地特征时,发现具有不同光合途径的牧草具有不同的叶脉间差异。
- 它也可以应用于荧光假单胞菌挥发性卤代脂肪烃,如 1,2-二氯乙烷和 1,2-二氯丙烷的代谢研究,这些都是地下蓄水层的主要污染物。
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Determination of partition coefficients by automatic equilibrium headspace gas chromatography by vapor phase calibration.
Chromatographia, 34 (5-8), 235-240 (1992)
Proceedings of the National Academy of Sciences of the United States of America, 97(14), 7894-7898 (2000-07-08)
We show that 18O evaporative enrichment of bulk leaf water in grass species can be significantly more enriched than predicted by the Craig-Gordon model, with C4 grasses considerably more enriched than C3 grasses. Our results suggest that the unanticipated 18O
Applied and environmental microbiology, 54(10), 2578-2579 (1988-10-01)
A Pseudomonas fluorescens strain designated PFL12 was isolated from soil and water that were contaminated with various chloroaliphatic hydrocarbons. The isolate was able to metabolize 1,2-dichloroethane, 1,1,2-trichloroethane, 1,2-dichloropropane, 2,2-dichloropropane, and trichloroethylene.
Journal of pharmaceutical and biomedical analysis, 23(1), 197-210 (2000-07-18)
A solid-phase microextraction (SPME) method has been developed and optimized for the polar residual solvent determination in pharmaceutical products. Five different polymer-coated fibers were investigated and the Carboxen/polydimethylsiloxane was found to be the most sensitive for all components. Two Headspace
实验方案
High performance, reliability, and reproducibility of HS-SPME in combination with GC/MS for the determination of VOCs in water was proven in an interlaboratory trial. The new ISO 17943 using HS-SPME is an improvement on existing official methods for this determination in terms of sensitivity and selectivity.
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