Shinwa Chemical Industries Ltd.
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Shinwa Chemical Industries
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"Anhydrous caffeine" Filtered 3 Item.

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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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Graph

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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Graph

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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