Summary
Type: SPE
Application #: 300420
Catalog#: 730003 - SPE Cartridges, Chromabond, C18, 3ml, PP, 500mg, 50/pk
Detection:
Conditions: Step 1:
Column conditioning:
6 ml methanol, then 6 ml dist. water
Sample application:
Slowly force or aspirate 10 ml apple juice through the column
Column washing:
2 ml dist. water, then 2 ml acetonitrile/dist. water (1:3, v/v)
Elution:
4 ml acetonitrile/acetic acid (99:1, v/v)
Evaporate the eluate and redissolve in 1.5 ml ethyl acetate (ultrasonic
treatment)
Step 2:
Column conditioning:
6 ml methylene chloride
Sample application:
Force or aspirate the redissolved eluate from step 1 through the column
Column washing:
2 ml acetone, then 2 ml acetonitrile
Elution:
4 ml acetonitrile/formic acid (99:1, v/v)
Further analysis: HPLC
Authors: Delgado T
Source: J Chromatogr 731 (1996) 109-114