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25326

Supelco

Nukol™ 毛细管GC色谱柱

size × I.D. 15 m × 0.53 mm, df 0.50 μm

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eCl@ss:
32119290

物料

fused silica

质量水平

100

Agency

meets requirements for USP G25 and G35

参数

60-200 °C temperature (isothermal)
60-220 °C temperature (programmed)

β值

265

df

0.50 μm

技术

gas chromatography (GC): suitable

尺寸 × 内径

15 m × 0.53 mm

基质活性基团

Bonded; acid-modified poly(ethylene glycol) phase

应用

agriculture
chemicals and industrial polymers
cleaning products
clinical
cosmetics
food and beverages
forensics and toxicology
personal care

色谱柱类型

capillary polar

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相关类别

一般描述

Capillary GC column is also known as open tubular column. The carrier gas flows through the central aperture and is unrestricted throughout the length of the column.
应用：将酸官能团引入相中使该色谱柱具有酸性，可用于分析挥发性酸性化合物。可以对难分析的羧酸（游离脂肪酸）以优异的峰形和最小的吸附量进行分析。
USP编码：该色谱柱满足USP G25及G35要求。
相：
  • 键合的
  • 酸改性的聚乙二醇
温度限制：
  • 60 °C至200 °C (等温)或220 °C（程序性的）

应用

Nukol™ Capillary GC Column may be used in the quantitative determination of C2-C8 free carboxylic acids in dairy products by gas chromatography. It may also be used for the determination of the free concentration of valproic acid in human plasma by equilibrium dialysis followed by solid-phase microextraction (SPME) and capillary gas chromatography.

其他说明

We offer a variety of chromatography accessories including analytical syringes

法律信息

Nukol is a trademark of Sigma-Aldrich Co. LLC

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

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在网站页面上，产品编号会附带包装尺寸/数量一起显示（例如：T1503-25G）。请确保 在“产品编号”字段中仅输入产品编号 (示例: T1503).

示例

T1503
货号
-
25G
包装规格/数量

其它示例：

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

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批号可以在产品标签上"批“ （Lot或Batch）字后面找到。

Aldrich 产品

  • 如果您查询到的批号为 TO09019TO 等，请输入去除前两位字母的批号：09019TO。

  • 如果您查询到的批号含有填充代码（例如05427ES-021），请输入去除填充代码-021的批号：05427ES。

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部分情况下，可能未在线提供COA。如果搜索不到COA，可在线索取。

索取COA

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the diameter of the column cage for Product number 25326, Nukol™ Capillary GC Column?

    For the 0.10-0.25mm ID columns, the cage is 6 in.  The cage is 8 in. for all other columns.

  4. Can I get a NUKOL capillary column with different dimensions than what you have as stock items?

    Yes, we should be able to manufacture this column in most standard capillary column dimensions as custom items.

  5. What is the phase makeup of the Nukol™ Capillary GC Column, Product 25326?

    This phase is a polyethylene glycol phase with the incorporation of acidic functional groups.  This makes the phase useful for volatile acidic compounds.

  6. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Solid-phase microextraction for the determination of the free concentration of valproic acid in human plasma by capillary gas chromatography.
Mette K
Journal of Chromatography. B, Biomedical Sciences and Applications, 673 (2), 299-305 (1995)
Quantitative determination of free volatile fatty acids from dairy products on a Nukol capillary column.
Luciano C.
Journal of Chromatography A, 519 (2), 369-378 (1990)
Scott RPW.
Introduction to Analytical Gas Chromatography, 101-102 (1997)

商品

GC Analysis of C2-C22 Free Fatty Acids on Nukol™

Separation of Methyl oleate; Caprylic acid; Heptanoic acid; Methyl decanoate; Methyl dodecanoate; Myristic acid; Methyl palmitate; Methyl palmitoleate; Methyl stearate; Methyl linoleate; Methyl linolenate; Acetic acid; Arachidic acid; Behenic acid; Propionic acid; Isobutyric acid; Valeric acid; Isovaleric acid; Isocaproic acid; Butyric acid

实验方案

GC Analyses of Free Fatty Acids

GC Analyses of Free Fatty Acids

游离脂肪酸GC分析

本文将讨论游离脂肪酸分析。

利用 Nukol™ 对乙二醇类进行气相色谱分析

99%；甘油，≥99.5%；四甘醇，99%

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

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