SU860097

Flacons Headspace, haut à vis, fond arondi (flacon seul)

volume 20 mL, clear glass vial, thread for 18, O.D. × H 22.5 mm × 75.5 mm, pkg of 100 ea

• Synonyme(s) : Screw cap rounded bottom headspace vial
• Code UNSPSC : 41122001
• Nomenclature NACRES : NB.11

Propriétés

• Matériaux: clear glass vial; round bottom
• Caractéristiques: closure type screw top vial
• Conditionnement: pkg of 100 ea
• D.E. × H: 22.5 mm × 75.5 mm
• Volume: 20 mL
• Raccords: thread for 18
• Compatibilité: for use with CTC PAL (Varian, Gerstel, Atas, Shimadzu)

Description

Description générale

Ces flacons requièrent un bouchon spécial ayant un filetage de 18 mm. Les bouchons filetés standards 18-400 ne s′adapteront pas à ces flacons. Les références de bouchons disponibles pour ces flacons sont les suivantes : SU860101(avec PTFE/silicone, épaisseur 1,3 mm), SU860102 (avec PTFE/butyl, épaisseur 1,6 mm), et SU860103 (avec PTFE/silicone, épaisseur 1,5 mm). Ces bouchons sont faits en acier inoxydable et ils sont magnétiques.

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.