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SU860097

Supelco

顶空瓶，螺旋盖，圆底（仅小瓶），100个装

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

别名:

螺旋盖圆底顶空瓶

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100 EA
$83.10

$83.10

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100 EA
$83.10

About This Item

UNSPSC代码:
41122001
NACRES:
NB.11

$83.10

请联系客服了解存货情况
获取大包装报价

物料

clear glass vial
round bottom

特点

closure type screw top vial

包装

pkg of 100 ea

外径 × 高度

22.5 mm × 75.5 mm

体积

20 mL

配件

thread for 18

相容性

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

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一般描述

这些样品瓶需要带 18mm 螺纹的专用瓶盖。标准 18-400 螺纹瓶盖不适合该样品瓶。这些样品瓶可用的瓶盖货号为 SU860101（PTFE/硅树脂，1.3mm 厚）、SU860102（PTFE/丁基橡胶，1.6mm 厚）和 SU860103（PTFE/硅树脂，1.5mm 厚）。这些瓶盖使用不锈钢材料并具有磁性。

应用

顶空瓶可用于以下用途：
  • 通过自动平衡顶空气相色谱法和气相校准 (VPC)，在独立分析小瓶中存在的乙酸乙酯总量的情况下，测定 0°C水中乙酸乙酯的分配系数。[1]
  • 在通过 GC-MS 开发和优化顶空 SPME 方法期间，它可用于分析药品中存在的挥发性极性残留溶剂。[2]
  • 它还可用于 C 3 和 C 4 牧草叶水的 18 O 同位素分析，在建立叶脉中的草地特征时，发现具有不同光合途径的牧草具有不同的叶脉间差异。[3]
  • 它也可以应用于荧光假单胞菌挥发性卤代脂肪烃，如 1,2-二氯乙烷和 1,2-二氯丙烷的代谢研究，这些都是地下蓄水层的主要污染物。[4]

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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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

实验方案

改良固相微萃取-气相色谱/质谱法测定水中挥发性有机化合物：ISO 17944标准

通过实验室间试验结果证明了顶空SPME联合GC/MS测定水中VOC方法的优异性能、可靠性和重复性。从检测的灵敏度和选择性来说，采用顶空SPME法的新ISO 17943标准比现有的官方方法更加先进。

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.

Questions

1–4 of 4 Questions  

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

    1 answer

    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 answer

    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 answer

    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 answer

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

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