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what is meaning of uv cut off
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Why acetone used in hplc calibration?
UV cut off of acetone is 330 nm and it is easyly available,non expensive. you can use any other solvent which has UV cut off above 250.
What are the UV active inactive compound?
The difference between UV active and inactive compounds is the pi orbitals. Compounds with more pi orbitals are more UV active than those without. Aromatic compounds are generally UV active.
Do they cut the hair or pull the hair for drug screen?
cut, just off the scalp
What is Difference Between HPLC UV detector Spectrophotometer uv detector?
hi, could any one answer what is the difference between hplc uv detector and spectrophotometer uv detector ? my id is debendra_mallick2002@yahoomail.com
Why do science labs have gas cut off valve?
Science labs are equipped with gas cut off valves in case of an emergency where all gas needs to be turned off at one; such as a gas fire. In such cases it can save lives and minimise damages.
What is the definition of cut off you uv-visible spectrophotometer?
UV cut-off is the wavelength at which the solvent absorbance in a 1 cm path length cell is equal to 1 AU (absorbance unit) using water in the reference cell. ( © 2000, LC Resources Inc.)
Which type of glass can cut off uv rays?
The answer is Crooks glass. It is a special type of glass containing some cerium oxide ( CeO2). As it has the property to cut off U. V. rays. It is used in making lenses.
Why acetone used in hplc calibration?
UV cut off of acetone is 330 nm and it is easyly available,non expensive. you can use any other solvent which has UV cut off above 250.
Why do UV tubes glow blue even though UV radiation is invisible to the human eye?
A UV tube gives off some blue light as well as UV radiation :)
Does sodium lighting give off UV?
No. Neither High or Low pressure Sodium Vapour lamps give off much energy in the UV wavelengths.
What surfaces does uv light reflect off of?
Polished aluminum
What star gives off harmful UV rays?
Everything hotter than a red giant produces some UV radiation.
What college will you get for your cut off?
my cut off is 142.5 and i want to do chemical engineering. what collage will i get for my cut off
How do you cut your backpack off?
cut it off what exactly?
What objects can give off UV rays or waves besides the usage of the sun?
Spectrum gives UV rays or waves besides the usage of the sun
When was Cedarhurst Cut-off created?
Cedarhurst Cut-off was created in 1871.
Why do UV light Rays give you a sunburn?
They give off UV radiation. It's like being out in the sun during summer for a few minutes.
