Natural Science Forum / Chemistry / Analytical Chemistry / May 2006

hi to all  i want know what is red mercury?

I was asked a question during an experiment for the fluorometric
determination of acetylsalicylic acid. I showed the excitation spectrum
and emission spectrum but someone inquired why that the excitation and
absorption spectrum are very narrow and sharp and the emission spectrum

I'm working on electrokinetic phenomena model in VHDL-AMS, which is a
part of my PhD thesis (in microelectronics), and in one of my models
I'd like to implement an equation describing the electrophoretic
mobility (or velocity) as a charge to size ratio. I've got some

Someone please settle a dispute here in the lab. When you react an
isocyanate with a polyol in order to make a polyurethane and say there is 2%
water in the polyol, is not the eq weight of the water 9 g/eq and not 18g
g/mole?

I'm shopping for a new FT-IR spectrometer (mid-IR) in the 25-30 000$US
price range and I would greatly appreciate INDEPENDANT opinions.
I'm very concerned about energy throughput (and detection limit linked
the S/N ratio) because most of my experiments are with DRIFTS accessory