跳轉至內容
Merck
全部照片(1)

Key Documents

796-0128

GC Analysis of Pesticides in Fruits and Vegetables on a 14% Cyanopropylphenyl Column after SPE using Supelclean ENVI-Carb

suitable for GC, application for SPE

登入查看組織和合約定價


About This Item

技術

gas chromatography (GC): suitable
solid phase extraction (SPE): suitable

測試參數

sample preparation: SPE (Solid Phase Extraction)
sample/matrix: extract from 50 g homogenized fruit or vegetable sample
SPE tube/cartridge: ENVI-Carb, 500 mg/6 mL (57094)
sample addition: 0.5 mL concentrated sample extract
elution: 20 mL acetonitrile:toluene (3:1)
eluate post-treatment: Concentrate to 2 mL by rotary evaporation. Add 2 x 10 mL acetone concentrating to 2 mL after each acetone addition. (Add 50 μL I.S. (500 ng/μL cis-chlordane in acetone) then dilute to 2.5 mL with acetone.)
column: 14% cyanopropylphenyl polysiloxane, 30m × 0.25 mm I.D., 0.15 μm (Supelco equivalent, Equity-1701, 28372-U)
oven: 70 °C (hold 2 min) to 130 °C at 25 °C; 130 °C to 220 °C at 2 °C/min; 220 °C to 280 °C at 10 °C/min and hold 4.6 min
detector: MSD, 285 °C
carrier gas: helium
injection: 2 μL, splitless

適合性

application for SPE

應用

agriculture
food and beverages

應用

Sample Pre-treatment:
Homogenize 50 g chopped fruit/vegetable sample in 100 mL acetonitrile. Add 10 g sodium chloride and homogenize 5 min. Transfer 13 mL of acetonitrile layer to clean centrifuge tube. Centrifuge at high speed for 5 min. Evaporate 10 mL aliquot of supernatant to 0.5 mL under Nitrogen at 35°C.

法律資訊

ENVI-Carb is a trademark of Sigma-Aldrich Co. LLC

從最近期的版本中選擇一個:

分析證明 (COA)

Lot/Batch Number

抱歉,我們目前沒有在線上提供本產品的COA

如果您需要協助,請聯絡 客戶支援

已經擁有該產品?

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務