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Sigma-Aldrich/Headspace vial, screw top, rounded bottom (vial only)/SU860097/

價格: ￥347.70 市場價: 452.01

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貨號: SU860097

品牌: Sigma-Aldrich

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material	clear glass vial
feature	closure type screw top vial
	round bottom
packaging	pkg of 100 ea
O.D. × H	22.5 mm × 75.5 mm
volume	20 mL
fitting	thread 18
compatibility	for use with CTC PAL (Varian, Gerstel, Atas, Shimadzu)

Description:

General description

These vials require a special cap with an 18 mm thread. The standard 18-400 threaded caps will not fit this vial. The part numbers for caps that are available for these vials are SU860101(with PTFE/silicone, 1.3 mm thick), SU860102 (with PTFE/butyl, 1.6 mm thick), and SU860103 (with PTFE/silicone, 1.5 mm thick). These caps are made from stainless steel and are magnetic.

Application

Headspace vial may be used for the following:
• In the determination of partition coefficient of ethyl acetate in water at 0° C from independent analyses of the total amount of ethyl acetate present in the vial, by automatic equilibrium headspace gas chromatography and vapor phase calibration (VPC).
• It may be used in the analysis of volatile polar residual solvents present in pharmaceutical products, during development and optimisation of headspace SPME method by GC-MS.
• It may also be used in the isotopic analysis of ¹⁸O in the leaf water of C₃ and C₄ grasses, during establishing a grassland signature in veins, as it was found that grasses with different photosynthetic pathway have different interveinal differences.
• It may also find application, in investigating metabolism by Pseudomonas fluorescens of volatile haloaliphatic hydrocarbons like 1,2-dichloroethane and 1,2-dichloropropane, which are some of the major contaminants of underground aquifers.

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Sigma-Aldrich/Headspace vial, screw top, rounded bottom (vial only)/SU860097/

Properties:

Description:

General description

Application

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