AN72210: Fast Determination of Biofuel Sugars by HPAE-PAD

Instrument Type: IC

This work updates the column used in AN1161 with a shorter 4 × 150 mm format column. The combination of the smaller resin particle size of the Dionex CarboPac SA10-4μm column and the shorter column used here results in separation of eight common sugars in less than six minutes. This is significant time savings as compared to the eight-minute runtime achieved in AN1089. The shorter run time allows for faster sample turnaround times and reduced eluent consumption, thereby improving the overall process economics. Results for method linearity, accuracy, and robustness are presented here.

AN71410: Ion Chromatography: A Versatile Technique for the Analysis of Beer (Part A: Carbohydrate Analysis)

Instrument Type: IC

This document describes the use of ion-exchange or ion-exclusion chromatography for the determination of five classes of compounds in beer, including carbohydrates, alcohols, organic acids, inorganic anions, and inorganic cations. Although many of these constituents can be determined individually using unrelated analytical techniques, reduced analysis time and equipment costs can be realized by using one instrument with multi-species capability. This part of the work deals with the carbohydrate determination which uses pulsed amperometry determination. This was formerly Dionex AN46.