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SU860101

Supelco

Magnetic Screw Cap for Headspace Vials, 18 mm thread

PTFE/silicone septum (white PTFE/tranparent blue silicone), septum thickness 1.3 mm, pkg of 100 ea

Synonym(s):

18 mm magnetic screw cap for vials

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About This Item

UNSPSC Code:
41122001
NACRES:
NB.11

material

PTFE/silicone septum (white PTFE/tranparent blue silicone)
stainless steel screw cap (magnetic, open-top, 8 mm center hole)

feature

closure type stainless steel hole cap

hardness

35 (Durometer: shore A)

packaging

pkg of 100 ea

O.D. × H

18 mm × 11 mm

septum thickness

1.3 mm

fitting

thread for 18 mm

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General description

This magnetic screw cap has been developed for the CTC instrument. The vial has a precision thread with numberous threads to force the septa against the vial to seal it to be gas tight. The center hole is designed to be used for SPME as well as standard Headspace analysis, but still offers enough surface for the magnet to transport a completely filled vial.

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Alexander A Aksenov et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1061-1062, 17-25 (2017-07-12)
Breath analysis has been gaining popularity as a non-invasive technique that is amenable to a broad range of medical uses. One of the persistent problems hampering the wide application of the breath analysis method is measurement variability of metabolite abundances

Protocols

Analysis of Bisphenol A in Food
by Solid Phase Microextraction Using an Overcoated Fiber

Bisphenol A (BPA) is suspected to be an endocrine disruptor. Regulations on specific migration limits (SML) from food contact materials are getting tighter (EU 2018/213) requiring more sensitive determinations. An overcoated SPME fiber provides the durability necessary for direct immersion into foods such as canned soup and pumpkin, allowing for low level analysis of BPA via SPME-GC-MS/MS.

Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17944

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.

Related Content

GC/MS/MS Analysis of Bisphenol A (BPA) in a Fruit Flavored Energy Drink on the SLB-PAHms Column After SPME Using an Overcoated SPME Fiber

GC/MS/MS Analysis of Bisphenol A (BPA) in a Fruit Flavored Energy Drink on the SLB-PAHms Column After SPME Using an Overcoated SPME Fiber

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