Developing suitable chromatographic conditions can take weeks or even months, especially if extensive column and eluent
optimization are required.
The desorption efficiency of the eluents
used was found to be generally low, it follows the order HClgreater than CH COOHgreater than H O with corresponding values of 17.
Antocyanins were sorbed from the concentrate onto the cartridge sorbent, the cartridge was washed with 1ml of HC1, and anthocyanins were re-extracted by the eluent
containing 30 vol.
The results from 4 repeat linearity experiments for recombinant FXN and CP spiked into DBSs and EDTA-containing blood eluents
as measured with the duplex assay are summarized in Fig.
A was water and eluent
B was acetonitrile--water (95:5), both containing 2 mM ammonium formate and 50 mM formic acid (Quilliam 2003).
Formic acid (Riedel-de-Haen) and ammonium acetate (Fluka Chemie AG, Buchs, Germany) were used for preparing eluents
The identity and purity of the eluents
and contaminants in each of the above fractions were confirmed by GC-MS.
Part 1 Testing of Eluents
and Extractant Part 2 TLC of Basic Dyed Acrylic Fiber Bulk Samples Part 3 TLC of Basic Dyed Acrylic Fibers of Differing Lengths
For an upgraded system, the EG Eluent
Generator Module supports dual-component eluents
The 828 IC Dual Suppressor is able to chemically suppress eluents
up to a concentration of 50 mmol/L HC03- or OH- at a flow of 1 mL/min.
The high specificity of the antibody-based biosensor enables the direct quantitation of FLAG-tagged analytes in crude lysates, column eluents
, cell lysates and cell culture supernatants.
1) consists of silica gel powder (230 mesh to 400 mesh with silica gel-to-CLCE ratio of 40 g/g), composition of different eluents
as shown in Table 1 and piston vacuum pump with vacuum pressure of 800 mbar.