Reversed Phase
Comparison 1 (Basic Compounds)
COSMOSIL 3C18-EB | Competitor A C18, 3 µm |
Competitor B C18, 3 µm |
Competitor C C18, 3 µm |
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Column size: | 4.6 mm I.D. x 75 mm |
Mobile phase: | Acetonitrile/ 20mmol/l Phosphate Buffer(pH7.0) = 60/40 |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 254 nm |
Sample: | 1. Amitriptyline 0.2mg/ml 2. Propylbenzene (I.S.) 2.0mg/ml |
Inj. Vol: | 2.0 µl |
Comparison 2 (Basic Compounds)
COSMOSIL 3C18-EB | Competitor A C18, 3 µm |
Competitor B C18, 3 µm |
Competitor C C18, 3 µm |
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Column size: | 4.6 mm I.D. x 75 mm |
Mobile phase: | Acetonitrile/ 20mmol/l Phosphate Buffer(pH7.0) = 60/40 |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 234 nm |
Sample: | 1. Dextromethorphan 0.5mg/ml 2. Benzene (I.S.) 7.5mg/ml |
Inj. Vol: | 1.5 µl |
Acidic Compounds
COSMOSIL 3C18-EB |
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Column size: | 4.6 mm I.D. x 75 mm |
Mobile phase: | Acetonitrile/ 20mmol/l Phosphate Buffer(pH2.5) = 30/70 |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 254 nm |
Sample: | 1. Salicylic Acid 1.0 mg/ml 2. Ethyl p-Hydroxybenzoate (I.S.) 0.05 mg/ml |
Metal Coordination Compounds
COSMOSIL 3C18-EB |
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Column size: | 4.6 mm I.D. x 75 mm |
Mobile phase: | Acetonitrile/ 20mmol/l Phosphoric Acid = 10/90 |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 254 nm |
Sample: | 1. Oxine-copper 0.03 mg/ml 2. Caffeine (I.S.) 0.3 mg/ml |
Inj. Vol: | 2.0 µl |
In addition, the complexity of the mobile phase often is detrimental to reproducibility. COSMOSIL 3C18-EB with a new end-capping treatment allows good peak shape and separation using simple mobile phase conditions.
Analysis with Simple Condition
Complicated Condition | Simple Condition |
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Methanol/ Acetonitrile/ 20mmol/l KH2PO4, 0.2%Triethylamine(pH3.0 with H3PO4) = 35/15/50(*) | Acetonitrile/ 20mmol/l Phosphate Buffer(pH2.5) = 30/70 |
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(*): USP 38(1) Amlodipine and Benazepril Hydrochloride Capsules, Performance Tests |
Column size: | 4.6 mm I.D. x 100 mm |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 237 nm |
Sample: | 1. Amlodipine 0.0077mg/ml 2. Benazepril 0.0225mg/ml |
Inj. Vol: | 50 µl |
Excellent Synthesis Reproducibility
COSMOSIL 3C18-EB |
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Column size: | 4.6 mm I.D. x 150 mm |
Mobile phase: | Acetonitrile / H2O = 60/40 |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 254 nm |
Sample: | 1. Acetophenone 0.05 mg/ml 2. Methyl Benzoate 0.5 mg/ml 3. Benzene 2.0 mg/ml 4. Toluene 2.0 mg/ml |
Inj. Vol: | 1.5 µl |
COSMOSIL 3C18-EB |
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Column size: | 4.6 mm I.D. x 150 mm |
Mobile phase: | Acetonitrile/ 20mmol/l Phosphate Buffer(pH7.0) = 60/40 |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 254 nm |
Sample: | 1. Amitriptyline 0.2 mg/ml 2. Propylbenzene (I.S.) 2.0 mg/ml |
Inj. Vol: | 2.0 µl |
Excellent Synthesis Reproducibility
Acetonitrile/ 20mmol/l Phosphate buffer(pH7.0) = 60/40 | Acetonitrile/ 10mmol/l CH3COONH4 = 60/40 |
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Column size: | 4.6 mm I.D. x 75 mm |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 254 nm |
Sample: | 1. Amitriptyline 0.2mg/ml 2. Propylbenzene (I.S.) 2.0mg/ml |
Inj. Vol: | 1.0 µl |
Excellent Synthesis Reproducibility
COSMOSIL 3C18-EB |
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Column size: | 4.6 mm I.D. x 100 mm |
Mobile phase: | A; Acetonitrile/ 36.7mmol/l Phosphate Buffer(pH7.6) = 10/90 B; Acetonitrile/ 36.7mmol/l Phosphate Buffer(pH7.6) = 80/20 B conc. 0→ 20%(0→ 10min), 20→ 100%(10→ 30min) |
Flow rate: | 1.0 ml/min |
Temperature: | 40°C |
Detection: | UV 302 nm |
Sample: | 1. Omeprazole related compound A 0.001mg/ml 2. Omeprazole 0.001mg/ml |
Inj. Vol: | 20 µl |
USP 37(3) Esomeprazole Magnesium Delayed-Release Capsules, Impurities |
Product | Cat.No. | End-Fitting | Quantity | Price(US$) | |
---|---|---|---|---|---|
COSMOSIL 3C18-EB Packed Column, 2.0 mm I.D. x 50 mm | 09794-21 | Waters type | 1 pkg | 420.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 2.0 mm I.D. x 75 mm | 09795-11 | Waters type | 1 pkg | 450.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 2.0 mm I.D. x 100 mm | 09796-01 | Waters type | 1 pkg | 475.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 2.0 mm I.D. x 150 mm | 09797-91 | Waters type | 1 pkg | 525.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 2.0 mm I.D. x 250 mm | 09798-81 | Waters type | 1 pkg | 680.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 3.0 mm I.D. x 50 mm | 09799-71 | Waters type | 1 pkg | 420.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 3.0 mm I.D. x 75 mm | 09800-21 | Waters type | 1 pkg | 450.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 3.0 mm I.D. x 100 mm | 09811-81 | Waters type | 1 pkg | 475.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 3.0 mm I.D. x 150 mm | 09814-51 | Waters type | 1 pkg | 525.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 3.0 mm I.D. x 250 mm | 09827-91 | Waters type | 1 pkg | 680.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 4.6 mm I.D. x 50 mm | 09840-01 | Waters type | 1 pkg | 420.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 4.6 mm I.D. x 75 mm | 09841-91 | Waters type | 1 pkg | 450.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 4.6 mm I.D. x 100 mm | 09842-81 | Waters type | 1 pkg | 475.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 4.6 mm I.D. x 150 mm | 09843-71 | Waters type | 1 pkg | 525.00 | Buy |
COSMOSIL 3C18-EB Packed Column, 4.6 mm I.D. x 250 mm | 09844-61 | Waters type | 1 pkg | 680.00 | Buy |
Product | Cat.No. | End-Fitting | Quantity | Price(US$) | |
---|---|---|---|---|---|
COSMOSIL 3C18-EB Guard Column, 4.6 mm I.D. x 10 mm | 09839-41 | Waters type | 1 pkg | 275.00 | Buy |
COSMOSIL 3C18-EB Guard Cartridge, 2.0 mm I.D. x 10 mm | 11892-74 | Waters type | 2 pkg | 200.00 | Buy |
COSMOSIL 3C18-EB Guard Cartridge, 4.6 mm I.D. x 10 mm | 11890-94 | Waters type | 2 pkg | 200.00 | Buy |
COSMOSIL Guard Cartridge Holder (2.0 mm I.D.) | 11884-71 | Waters type | 1 pkg | 285.00 | Buy |
COSMOSIL Guard Cartridge Holder (4.6 mm I.D.) | 38009-79 | Waters type | 1 pkg | 285.00 | Buy |