مشخصات فنی محصول | |
---|---|
Identity (UV/VIS-Spectrum) | passes test |
1st transition range | pH 4.3 - pH 6.3 Lightly yellow - pink |
2nd transition range | pH 9.4 - pH 12.0 Brown orange - violet |
Absorption maximum λ 1 (buffer pH 4.3) | 418 - 424 nm |
Absorption maximum λ 2 (buffer pH 6.3) | 510 - 517 nm |
Absorption maximum λ 3 (buffer pH 9.4) | 444 - 450 nm |
Absorption maximum λ 4 (buffer pH 12.0) | 554 - 558 nm |
Spec. Absorptivity A 1%/1cm (λ1max; 0.01 g/l; buffer pH 4.3; calc. on dried substance) | 135 - 180 |
Spec. Absorptivity A 1%/1cm (λ2max; 0.01 g/l; buffer pH 6.3; calc. on dried substance) | 145 - 210 |
Spec. Absorptivity A 1%/1cm (λ3max; 0.01 g/l; buffer pH 9.4; calc. on dried substance) | 170 - 230 |
Spec. Absorptivity A 1%/1cm (λ4max; 0.01 g/l; buffer pH 12.0; calc. on dried substance) | 340 - 520 |
Loss on drying (110 °C) | ≤ 10 % |