Dichromate solution 1: K2Cr2O7 50 mg/LT in H2SO4 0.005M
Dichromate solution 2: K2Cr2O7 100 mg/LT in H2SO4 0.005M
Blank solution (2x): H2SO4 0.005M
Nominal absorbance in a 10mm quartz cell at 20°C against blank solution:
235nm: 0.626 (50mg/LT); 1.251 (100mg/LT)
257nm: 0.727 (50mg/LT); 1.454 (100mg/LT)
313nm: 0.244 (50mg/LT); 0.488 (100mg/LT)
350nm: 0.536 (50mg/LT); 1.071 (100mg/LT)
Application: Absorbance calibration of UV/Vis spectrophotometers and HPLC detectors