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Because Potasium dichromate (Potassium Dichromate solvated in dilute (0.001N) perchlorate acid) gives absorption at two characteristics wavelength at 235nm to 350nm ( for 20mg/L to 100mg/L) and 430nm (for 600mg/L) that's why used in wide range for linerity test of spectrophotometer.

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13y ago
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12y ago

Because it shows characteristic known wavelengths at 235,257,313 and 430 at specified dilutions!

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10y ago

because KCl is transparent over the entire range of wavelengths (0.3 µm to 20 µm)

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8y ago

Potassium dichromate is very stable and can be obtained in a very pure form.

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12y ago

because its show characterestic absorbent

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Q: Why use potassium dichromate in uv calibration?
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Why Potassium dichromate is used for calibrate the control of absorbance of UV spectrophotometer?

Potassium dichromate is used as the primary standard for UV spectrophotometry because of its properties. It is pure, stable, has no waters of hydration, and has a high molar mass.


Why potassium chloride used for calibration of limit of stray light in UV?

Cuz we dont know


Why1.2 percent water solution of potassium chloride used in UV calibration?

The solution of potassium chloride is used to evaluate the stray light.


Why you use holmium filter for UV calibration?

to check the sensitivity of the instrument


Why you are using kcl in the calibration of uv visible spectrophotometer?

how do you determine degree of deacetylation of chitosan using UV -vis spectrophotometer


Why limit of stray light perform in uv calibration and how?

To check external interference of light


Why is holmium used in uv calibration?

Holmium oxide is used as standard reference to check wavelengts.


Why is Erbium perchlorate is used in calibration of HPLC?

Erbium has a strong absorption in uv and visible range, It is used in HPlc calibration for the wavelength accuracy verification of the PDA detector.


Why holmium oxide is used in calibration of uv?

Because Only holmium can give sharp peaks in both UV and Vis range, Sharp peak is very rare in UV/Vis spectroscopy. It is very stable and doesn't absorb light at lower wavelength.


Why is toluene in hexane used in uv calibration?

Toluene has clear absorption peaks at 266 nm and 269 nm. Hexane is only the solvent.


What would happen to large potassium magnate crystals in water after several hours?

If you think to potassium "permanganate" this compound can be decomposed under the influence of UV radiations.


What do csi infestergatots use uv light for?

they use uv light because it works really well