Figure2
—Excellent peak symmetryandefficiencyona1.9μmPinnacle™DBC18
column, usinga reversedphase testmix.
HPLC COLUMNS
Small Particle HPLC Columns
Phone: 800-356-1688 or 814-353-1300
9
Figure1
—Pinnacle™DB silicaparticle sizedistribution chart shows anexceptionally tight, symmetrical
distributionaround1.9μmwithno<1μmparticles.
Performance:
(calculations for biphenyl)
Efficiency:
217,619 n/m
Asymmetry:
1.10
Pressure:
4,500 psi
Sample:
Inj.:
2µL
Sample diluent: water:methanol (25:75)
Sample temp.: ambient
Column:
Pinnacle
™
DBC18
Cat.#:
9414252
Dimensions:
50 x 2.1mm
Particle size:
1.9µm
Pore size:
140Å
Conditions:
Mobile phase:
water:acetonitrile (45:55)
Flow:
0.4mL/min.
Temp.:
25°C (or ambient)
Det.:
UV@ 254nm
Peak List:
1. uracil
3.00mg/mL
2. benzene
0.02mg/mL
3. naphthalene
0.50mg/mL
4. biphenyl
0.06mg/mL
LC_EX0427
RickLake
InnovationsChemist
2+yearsof service!
