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GC Analysis of Semivolatiles in Drinking Water on a 5% Phenyl Column after SPE using ENVI-18 DSK

GC Analysis of Semivolatiles in Drinking Water on a 5% Phenyl Column after SPE using ENVI™-18 DSK suitable for GC, application for SPE

Materials

analytical column

Product No.
Description
Pricing

Equity-5 Capillary GC Column

L × I.D. 30 m × 0.25 mm, df 0.25 μm

related product

Product No.
Description
Pricing

ENVI-18 DSK SPE Disk

diam. 47 mm, pk of 24

CONDITIONS

sample preparation

SPE (Solid Phase Extraction)

sample/matrix

acidified drinking water

SPE tube/cartridge

ENVI-18 DSK SPE Disk, 47 mm (57171)

condition

5 mL dichloromethane; 5 mL methanol; 5 mL DI water

sample addition

5 mL water sample

elution

2 x 5 mL acetonitrile rinsing internal chamber of sample reservoir thoroughly

column

5% phenyl polysiloxane, 30 m × 0.25 mm I.D., 0.25 μm (Supelco equivalent, SLB-5ms, 28471-U)

oven

40 °C to 160 °C (3 min), then to 300 °C (3 min) at 6 °C/min

detector

MS, scan range m/z = 45-450

carrier gas

helium, 33 cm/sec

injection

1 μL split/splitless, 1 min delay

Description

Application

Sample Pre-treatment:
Adjust 1 L drinking water to pH <2 with 6 N HCl. Add 5 mL methanol and mix thoroughly

Legal Information

ENVI is a trademark of Sigma-Aldrich Co. LLC