Ultisil® XB-C18 ----- Universal HPLC Analytical Column

Ultisil® XB-C18 is the most commonly used column in the market. It can substitute Waters Symmetry C18, Phenomenex Luna C18, Supelcosil LC-18-D8, YMC ODS-AM, Alltima C18, GL, Inertsil ODS-2 etc. XB-C18 has high theoretical plates and peak capacity, so it's suitable for analysis of complex samples. 

 

 

Ultisil® XB-C18

 Structural Formula   
 pH Range  1.5-10.0
 Particle Size 3μm, 5μm, 10μm
 Surface Area(m²/g)  320(120 Å), 30(300 Å)
 Carbon Loading(%)  17(120 Å), 8(300 Å)
 USP List  L1
 Endcapped Yes 

 

Separation of Basic Compounds Antidepressant at pH 7.0

Column: Ultisil® XB-C18, 4.6×150 mm, 5 µm
Mobile Phase: 20 mM phosphote(pH 7.0) /methanol=20/80
Flow rate: 1.0 mL/min
Detector 215 nm
Temperature: 25°C
Sample

1)Uracil

3)Ortriptyline

5)Trimipramine

2)Ropranolol

4)Amitryptyline

 

Comparison of Peak Shape between Batch to Batch

Column: Ultisil® XB-C18, 4.6×250 mm, 5 µm
Mobile Phase: Methanol / water=75/ 25
Flow rate: 1.0 mL/min
Detector: 254 nm
Temperature: 25°C
Samples:

1)Uracil

3)4-chloronitrobenzen

2)Phenol

4)Methylbenzene

 


 

 

Capacity Factor(K’) of Batch to Batch Reproducibility

 

Excellent Stability at Low pH and High pH

  

The stability of XB-C18 is better than other brand columns under pH 1.3 or under pH 10.

 


 

 

Argratoban

Column: Ultisil® XB-C18, 4.6×250 mm, 3 µm
Mobile Phase: A: 10mmol/L ammonium acetate
B: acetonitrile/methanol=50/30
Gradient Program:

Time(min)

0

20

35

50

60

60.1

80

A(%)

60

60

50

20

20

60

60

B(%)

40

40

50

80

80

40

40

Flow Rate: 0.6mL/min
Detector: 259nm
Temperature: 50°C
Injection Volume: 10μL
Reference Sample: S-argatroban, R-argatroban

 

 

Paracetamol Injection USP 36

Column: Ultisil® XB-C18, 4.6×250 mm, 5 µm
Mobile Phase: A: methanol/water/acetic acid =50/950/1
B: methanol/water/acetic acid =50/500/1
Gradient Program:

Time(min)

0

8

53

58

59

73

A(%)

82

82

0

0

82

82

B(%)

18

18

100

100

18

18

Flow Rate: 0.9mL/min
Detector: 254nm, 275nm, 317nm
Temperature: 40°C
Injection Volume: 20μL
Reference Sample: L-hydroxyproline, glycine, alanine, L-proline

 

Aflatoxin

Column: Ultisil® XB-C18, 4.6×250mm, 5μm
Mobile Phase: Water/methanol/acetonitrile=46/40/14
Flow Rate: 1.0mL/min
Detector:

Excitation wavelength: 360nm
Emission wavelength: 450nm Gain:17

Temperature: 30°C
Injection Volume: Post -column photo chemical derivation
(254 nm)
Aflatoxin B1, B2, G1, G2 mixed standards, meets separation requirements

 

Progesterone(EP 5.0)

Column: Ultisil® XB-C18, 4.6×150mm, 5μm
Mobile Phase: A: water B: acetonitrile
Gradient Program:

Time(min)

0-20

20-27

27-45

45-50

A(%)

50

50-20

20

50

B(%)

50

50-80

80

50

Flow Rate: 0.9mL/min
Detector: 254nm, 275nm, 317nm
Temperature: 40°C
Injection Volume: 20μL
Reference Sample: L-hydroxyproline, glycine, alanine, L-proline
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