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490-509_hplcapps.qxp 11/19/2008 2:49 PM Page 492 HPLC APPLICATIONS | UHPLC UHPLC Column Analyses Reversed Phase Tes...

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490-509_hplcapps.qxp

11/19/2008

2:49 PM

Page 492

HPLC APPLICATIONS | UHPLC

UHPLC Column Analyses Reversed Phase Test Mix on Pinnacle® DB C18 (1.9μm)

Peak List: 1. uracil 2. benzene 3. naphthalene 4. biphenyl

Performance: (Calculations for Biphenyl) Efficiency: 217,619 n/m Asymmetry: 1.10 Pressure: 4,500 psi

3.00mg/mL 0.02mg/mL 0.50mg/mL 0.06mg/mL

Sample: Inj.:

2µL HPLC Reversed Phase Test Mix #1 (cat.# 35005) Sample diluent: water:methanol (25:75) Sample temp.: ambient Column: Cat.#: Dimensions: Particle size: Pore size: Conditions: Mobile phase: Flow: Temp.: Det.:

Pinnacle® DB C18 9414252 50mm x 2.1mm 1.9µm 140Å water:acetonitrile (45:55) 0.4mL/min. 25°C UV @ 254nm

LC_EX0427

please note

Excellent peak symmetry and efficiency!

See page 298 for 1.9µm Pinnacle® DB UHPLC Columns ordering information.

Parabens on Pinnacle® DB C18 (1.9μm) Peak List: 1. methyl paraben 2. ethyl paraben 3. propyl paraben 4. butyl paraben

1.9µm Particle Size, 0.5mL/min. methyl paraben

ethyl paraben propyl paraben

butyl paraben

LC_PH0436

Column: Cat.#: Dimensions: Particle size: Pore size:

Sample: Inj.: 2µL Conc.: ~ 100µg/mL each component Sample diluent: mobile phase Conditions: Mobile phase:

0

Flow: Temp.: Det.:

Get More! UHPLC Related Articles Online

Pinnacle® DB C18 9414252 50mm x 2.1mm 1.9µm 140Å

0.1% acetic acid: acetonitrile (50:50) isocratic 0.5mL/min. ambient UV @ 254nm

please note See pages 508, 509, and 530 for more applications on 1.9µm Pinnacle® DB UHPLC Columns.

www.restek.com/uhplc

492 www.restek.com

800-356-1688 or 814-353-1300