| Analyte |
Method |
On-column
Detection Limit |
Sample Size |
| Carotenoids |
HPLC |
0.3 - 0.5 ng |
Serum/Urine: 200 uL Milk: |
| Catechins |
HPLC |
|
Serum/Urine: 300 uL Milk: |
| ... Epigallocatechin
Gallate |
|
30 ng |
|
| ... Gallocatechin Gallate |
|
|
|
| Isoflavones ( diadzein,
genistein, glycitein) |
HPLC |
0.2 ng |
Serum/Urine: 300 uL |
| Retinoic Acid (9 & 13
cis, trans) |
HPLC |
0.15 ng |
Serum: 2 mL |
| Retinyl Esters (linolate,
myristate, oleate, palmitate, stearate) |
HPLC |
2.0 ng |
Serum: 500 uL |
| Vitamin C (sample
must be preserved with meta-phosphoric acid immediately after collection.) |
HPLC |
2.0 ng |
Serum: 250 uL Urine: 500
uL |
| Vitamin C, Urinary (normalized
for creatinine) |
HPLC |
|
|