|
Lipid Extraction (click for protocol)
Free Fatty Acids
HDL (micro method)
Triglyceride TG (micro method)
Cholesterol TC (micro method)
Protocol for DCL Total Cholesterol Assay
Reagents needed:
Diagnostic Chemicals Ltd catalog number 225-28
100 mg/dl cholesterol standard (eg Point Scientific catalog number C7509-STD)
Total sample volume is 25 µl
1. Set up standard curve in columns 1 and 2 as follows:
Row Chol Stnd Water
(100mg/dl)
A 0 (blank) 25
B 1 24
C 2.5 22.5
D 5 20
E 10 15
F 20 5
G 25 0
2. Pipette 5 µl plasma into duplicate wells.
(5 µl for chow diet; 2.5 µl for high-fat diet)
3. Add 20 µl water to samples (or whatever vol. brings it to 25 µl)
4. Add 175 µl DCL reagent to all wells
5. Incubate at 37°C for 15 minutes
6. Read at 505 nm
FPLC (includes TC/TG & profile for fractions)
|