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BioHPLC Column Selection Guide Cover - Agilent Technologies

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Exploiting chemical stability –<br />

TFA concentration<br />

<strong>Column</strong>: PLRP-S 100Å<br />

PL1512-5500<br />

4.6 x 250 mm, 5 µm<br />

Mobile Phase: A: TFA (various %) in water<br />

B: TFA (various %) in ACN<br />

Gradient: Linear 12-40% B in 15 min<br />

Flow Rate: 1.0 mL/min<br />

Detector: ELS (neb=75 °C, evap=85 °C, gas=1.0 SLM)<br />

Exploiting chemical stability –<br />

NH 4OH concentration<br />

<strong>Column</strong>: PLRP-S 100Å<br />

PL1512-5500<br />

4.6 x 250 mm, 5 µm<br />

Mobile Phase: A: NH4OH (various mM) in water<br />

B: NH4OH (various mM) in ACN<br />

Gradient: Linear 10-100% B in 15 min<br />

Flow Rate: 1.0 mL/min<br />

Detector: ELS (neb=80 °C, evap=85 °C, gas=1.0 SLM)<br />

0<br />

0.0025%<br />

0.02%<br />

0.1%<br />

1<br />

0 min<br />

15<br />

1 mM<br />

10 mM<br />

100 mM<br />

min<br />

2<br />

1<br />

3<br />

2<br />

3<br />

Reversed-Phase HPLC<br />

1. Angiotensin III<br />

2. Angiotensin II<br />

3. Angiotensin I<br />

VLC0068<br />

1. Angiotensin II<br />

2. Angiotensin I<br />

3. Angiotensin III<br />

10<br />

VLC0049<br />

UHPLC/HPLC<br />

39

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