GC

Samples

Anhydrous caffeine, Fenitrothion in Acetone

Applications

Analysis of Fenitrothion Emulsifiable Concentrate using Shinwasorb

Column

Silicone OV-210 3% Shinwasorb-S 80/100

Column Size

2.1 m x 3.2 mm I.D. Glass

Column temp.

175℃

Carrier gas

51 mL/min N₂（Adjust so that the retention time of Anhydrous caffeine is about 10 minutes.)

Injection port temp.

230°C

Detector temp.

230°C

Detector

FID

Injection volume

2.0 μL

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GC

Samples

Anhydrous caffeine, Fenitrothion in Acetone

Applications

Analysis of Fenitrothion Microcapsule using Shinwasorb

Column

Silicone OV-210 1.5% Shinwasorb-U 60/80

Column Size

2.1 m x 3.2 mm I.D. Glass

Column temp.

165℃

Carrier gas

50 mL/min N₂（Adjust so that the retention time of diazinon is about 17 minutes.)

Injection port temp.

200°C

Detector temp.

200°C

Detector

FID

Injection volume

2.0 μL

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LC

Samples

Caffeine , Theophylline , Theobromine , 1-Methylxanthine , Xanthine

Applications

Analysis of Xanthines

Column

ULTRON AF-HILIC-CD

Column Size

150 mm L × 2.0 mm I.D.

Mobile phase

10mM CH3CO2NH4 (pH6.8) /CH3CN = 13/87

Frow rate

0.15 mL/min

Column temp.

30°C

Injection volume

1.0 µL

Diluent

Dissolved samples in 0.1% NaOH aq and add acetonitrile into ratio to 90%

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