水溶性人造色素分析
artificial colours (water soluble)
conditions
column: ace 3 c18
dimensions: 100 x 4.6 mm
part number: ace-111-1046
mobile phase:
a: 3 mm tetrabutylammonium bromide and 5 mm kh2po4 in h2o
b: 5 mm tetrabutylammonium bromide in meoh
time(mins) | %b |
0 | 45 |
20 | 70 |
30 | 45 |
40 | 45 |
flow rate: 0.8 ml/min
injection: 10 μl
temperature: ambient
detection: uv-vis, 420 nm, 520 nm and 600 nm
1. amaranth
2. sunset yellow
3. allura red
4. red 2g
5. ponceau 4r
6. carmoisine
7. erythrosine
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