Performance Verification - jenway 6300 Service Manual

8.8 Performance Verification

Equipment Required; - 1. Certified Wavelength Standard,
2. Certified Absorbance Standards, 3. Certified Stray Light
Standard.
Items 1 and 2 above can be supplied as Calibration Filter Sets, order part
numbers 035 088.
Where filters are not available the following reagents may be used:
8.8.1 Holmium Perchlorate – 5% w/v solution of Holmium Oxide in
1.4N Perchloric acid, this will give absorbance maxima at 361.4,
416.1, 451.1, 485.3, 536.5 and 640.5.
8.8.2 Potassium Dichromate – 100.0mg/l in 0.005M Sulphuric Acid (use
the Sulphuric Acid as the blank). This will give Absorbance values
of 1.071 at 350nm, 0.484 at 313nm.
Potassium Dichromate – 50.0mg/l in 0.005M Sulphuric Acid (use
the Sulphuric Acid as the blank). This will give Absorbance values
of 0.536 at 350nm, 0.242 at 313nm.
8.8.3 Sodium Nitrate – 50g/l in deionised water, should give less than
0.1% transmittance at 340nm.
All these solutions are hazardous and the manufacturer/suppliers
safety precautions should be carefully followed at all times in
preparation, use and storage.
8.8.4 Wavelength Verification
Equipment Required; - A certified wavelength standard, i.e. Holmium
Oxide Filter, Holmium Perchlorate Solution etc. (See Section 8.8.1)
Turn the unit on and allow the Start Up tests to complete then allow 15
minutes for the instrument to warm up.
Use the up and down arrow keys to select a wavelength about 10nm
below the certified wavelength of the filter or standard to be used.
Jenway 6300 Ser Man 46