Shinwa Chemical Industries Ltd.
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Shinwa Chemical Industries
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"Theobromine" Filtered 6 Item.

Graph

LC

Samples
Theophylline , 1.7-Dimethylxanthine , Theobromine
Applications
Xanthines
Column
ULTRON AF-HILIC-CD
Column Size
150 mm L × 2.0 mm I.D.
Mobile phase
10 mM CH3CO2NH4(pH 6.8)/CH3CN = 13/87
Frow rate
0.15 mL/min
Column temp.
30°C
Injection volume
1.0 µL

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Graph

LC

Samples
Caffeine , Theobromine , Purine , Xanthine , Hypoxanthine , Adenine , Guanine , Uric acid , Isoguanine
Applications
Purine and purine bases
Column
ULTRON AF-HILIC-CD
Column Size
150 mm L × 2.0 mm I.D.
Mobile phase
15 mM CH3CO2NH4(pH 4.7)/CH3CN = 10/90
Frow rate
0.35 mL/min
Column temp.
30°C
Injection volume
1.0 µL

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Graph

LC

Samples
Toluene , Uridine , 2'-Deoxyuridine , 5-Methyluridine , Adenosine , Vidarabine , 2'-Deoxyguanosine , 3'-Deoxyguanosine , 4-Nitrophenyl-α-glucopyranoside , 4-Nitrophenyl-β-glucopyranoside , Theophylline , Theobromine ,
Applications
Analysis of polar compounds
Column
ULTRON AF-HILIC-CD
Column Size
100 mm L × 4.6 mm I.D.
Mobile phase
20mM CH3CO2NH4 (pH4.7) /CH3CN = 10/90
Frow rate
0.50 mL/min
Column temp.
30°C
Injection volume
4.0 µL
Diluent
mobile phase

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Graph

LC

Samples
Toluene , Uridine , 2'-Deoxyuridine , 5-Methyluridine , Adenosine , Vidarabine , 2'-Deoxyguanosine , 3'-Deoxyguanosine , 4-Nitrophenyl-α-glucopyranoside , 4-Nitrophenyl-β-glucopyranoside , Theophylline , Theobromine ,
Applications
Analysis of polar compounds
Column
ULTRON AF-HILIC-DA
Column Size
100 mm L × 4.6 mm I.D.
Mobile phase
20mM CH3CO2NH4 (pH4.7) /CH3CN = 10/90
Frow rate
0.50 mL/min
Column temp.
30°C
Injection volume
4.0 µL
Diluent
mobile phase

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LC

Samples
Acesulfame K , Saccharin , Caffeine , Sorbic acid , Benzoic acid , Quinine , Aspartame
Applications
Analysis of food additives
Column
ULTRON AF-HILIC-CD
Column Size
150 mm L × 3.0 mm I.D.
Mobile phase
A: 20mM CH3CO2NH4 (pH4.7) /CH3CN = 10/90, B: 20mM CH3CO2NH4 (pH4.7) /CH3CN = 70/30
Frow rate
Refer to the picture
Column temp.
30°C
Injection volume
2.0 µL
Diluent
H2O /CH3CN = 50/50

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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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