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SU860097

Headspace vial, screw top, rounded bottom (vial only)

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

Synonym(s):

Screw cap rounded bottom headspace vial

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About This Item

NACRES:
NB.11
UNSPSC Code:
41122001
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material

clear glass vial, round bottom

feature

closure type screw top vial

packaging

pkg of 100 ea

O.D. × H

22.5 mm × 75.5 mm

volume

20 mL

fitting

thread for 18

compatibility

for use with CTC PAL (Varian, Gerstel, Atas, Shimadzu)

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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Protocols

Metodo innovativo per la determinazione di composti organici volatili in acqua mediante SPME e GC/MS ISO Standard 17943

Un trial interlaboratorio ha validato l’alto livello di efficacia, affidabilità e riproducibilità di un metodo di determinazione di COV mediante HS-SPME seguita da GC/MS. Il nuovo metodo ISO 17943 con l’impiego di HS-SPME segna un progresso, in termini di sensibilità e di selettività, rispetto agli attuali metodi ufficiali in uso per questa determinazione.

Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17943

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.

Optimierte Bestimmung flüchtiger organischer Verbindungen in Wasser durch SPME und GC/MS: ISO-Norm 17943

Die hohe Leistungsfähigkeit, Zuverlässigkeit und Reproduzierbarkeit der HS-SPME in Kombination mit GC/MS für die Bestimmung von VOC in Wasser wurde in einem Ringversuch nachgewiesen. Die neue ISO 17943 unter Einsatz von HS-SPME stellt eine Verbesserung der bestehenden offiziellen Methoden für diese Bestimmung in Bezug auf Empfindlichkeit und Selektivität dar.

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Determination of partition coefficients by automatic equilibrium headspace gas chromatography by vapor phase calibration.
Welter KBC and Bichler C.
Chromatographia, 34 (5-8), 235-240 (1992)
B R Helliker et al.
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
P A Vandenbergh et al.
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.
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Global Trade Item Number

SKUGTIN
SU86009704061837328664