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Merck

24106-U

Supelco

Nukol 毛细管GC色谱柱

size × I.D. 15 m × 0.25 mm, df 0.25 μm

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About This Item

分類程式碼代碼:
12352211
eCl@ss:
32119290
NACRES:
SB.54

材料

fused silica

agency

meets requirements for USP G25 and G35

參數

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

β值

250

df

0.25 μm

技術

gas chromatography (GC): suitable

尺寸 × 內徑

15 m × 0.25 mm

基質活性組

Bonded; acid-modified poly(ethylene glycol) phase

應用

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

柱類型

capillary polar

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一般說明

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。

  • 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)

應用

Nukol capillary GC column may be used for quantitative determination of free volatile fatty acids (FVFA) from dairy products. 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.

其他說明

We offer a variety of chromatography accessories including analytical syringes

法律資訊


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分析证书(COA)

Lot/Batch Number

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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)

实验方案

In this study, SPME was used for the analysis of free fatty acids in Parmesan cheese using a 65 μm Carbowax/divinylbenzene (DVB) SPME fiber. Headspace extraction of the cheese sample was conducted at 65 °C for 15 minutes and analyzed by GC with FID detection. SPME is ideal for analyzing the volatiles associated with solid food samples. The phase chemistry of the Nukol GC column provides excellent peak shape of acidic compounds.

Chromatograms

suitable for GC, application for SPME

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