Analysis of Food Sugars/Saccharides in Cough Syrup Using ACQUITY UPLC BEH Amide Columns

Column:

ACQUITY UPLC BEH Amide 2.1 x 100 mm, 1.7 µm

Part Number:

186004801

Mobile Phase A:

80/20 MeCN/H₂O with 0.2% triethylamine [TEA]

Mobile Phase B:

30/70 MeCN/H₂O with 0.2% triethylamine [TEA]

Flow Rate:

0.26 mL/min

Gradient:

6 minute gradient, 80%-50% MeCN (w/0.2% TEA) with 12 minute re-equilibration

Injection Volume:

1.3 μL (PLNO)

Sample Concentration:

Standards at 1 mg/mL each, cough syrups at 1% (v/v)

Sample Diluent:

50/50 MeCN/H₂O

Column Temperature:

35 °C

Strong Needle Wash:

MeCN/H₂O 20/80 (800 μL)

Weak Needle Wash:

MeCN/H₂O 75/25 (500 μL)

Seal Wash:

MeCN/H₂O 50/50

Instrument:

Waters ACQUITY UPLC with ELSD

Gain:

200

Pressure:

40 psi

Drift Tube Temperature:

40 °C

Nebulizer:

Cooling

Data Rate:

10 pps

Filter Time Constant:

Normal