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주요 문서

SU860097

Supelco

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

동의어(들):

Screw cap rounded bottom headspace vial

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크기 선택

100 EA
₩90,132

₩90,132

출고 가능일2025년 4월 24일세부사항

벌크 견적 요청
모든 사진(1)

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보기 변경
100 EA
₩90,132

About This Item

UNSPSC 코드:
41122001
NACRES:
NB.11

₩90,132

출고 가능일2025년 4월 24일세부사항

벌크 견적 요청

material

clear glass vial
round bottom

특징

closure type screw top vial

포장

pkg of 100 ea

O.D. × H

22.5 mm × 75.5 mm

용적

20 mL

피팅

thread for 18

호환성

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

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관련 카테고리

일반 설명

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.

애플리케이션

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).[1]
  • 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.[2]
  • 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.[3]
  • 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.[4]

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시험 성적서(COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our 문서 section.

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이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

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
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)
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.
C C Camarasu
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

프로토콜

SPME 및 GC/MS를 이용한 물에 함유된 휘발성 유기화합물(VOC)의 향상된 측정: ISO 표준 17943

물에 함유된 VOC의 측정을 위해 GC/MS와 조합한 HS-SPME의 고성능, 신뢰성 및 재현성은 실험실간 시험에서 입증되었습니다. HS-SPME를 이용한 새로운 ISO 17943은 민감도와 선택성에서 이 측정의 기존 공식 방법을 개선하였습니다.

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.

질문

1–4 / 4 질문  

  1. Can the vials withstand cryogenic freezing or temperatures as low as -80°C?

    1 답변

    1. These vials are not suitable for cryogenic freezing temperatures and cannot withstand -80 °C.

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 답변

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. How can I determine the shelf life / expiration / retest date of this product?

    1 답변

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  4. est ce que les flacons tiennent debout une fois posés malgré le fond arrondi ?

    1 답변

    1. Headspace vial, screw top, rounded bottom (vial only), product SU860097, will stand upright once placed.

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