Mercury (as a metal) is soluble in concentrated nitric acid.
Silica-containing samples can be dissolved using a mixture of hydrochloric acid and nitric acid. Another option is to use a mixture of sulfuric acid and hydrochloric acid. Strong bases like sodium hydroxide can also be used for dissolving silica, though this may require elevated temperatures.
The estimation of mercury in biological samples is typically done using techniques such as atomic absorption spectrophotometry or inductively coupled plasma mass spectrometry. These methods involve digesting the biological sample to release the mercury and then measuring its concentration. Calibration curves with known standards are used to quantify the amount of mercury present in the sample.
Maybe from DJMixsource.com and other related sites. Maybe you want to extract them from an old tape, or some mp3 files. In the stores you may find CDs containing special effects and samples. Anyway, there are a lot of places where you can get samples. I hope this answer helps you :)
Stardust. The spaceships name was Stardust.
To treat the DNA before placing the samples into the wells, a loading dye containing substances like glycerol and bromophenol blue is commonly used. The loading dye helps to visualize and track the DNA samples as they move through the gel during electrophoresis.
Water samples containing dissolved substances are known as solutions. The substances are dissolved in the water, resulting in a homogeneous mixture where the particles are evenly distributed.
To extract DNA from blood samples, the blood is first treated with a solution to break open the cells and release the DNA. The DNA is then separated from other cellular components using techniques like centrifugation or filtration. Finally, the DNA is purified and concentrated for further analysis or testing.
samples of them
Most companies no longer give free samples of tampons or pads.The only company I know who still does this is Cottons organic tampons and pads, they will send small sample packs containing a tampon, pad, and liner. You can buy softcup samples from their web site which isn't free but is a cheap way to try softcups before buying a full pack. Otherwise you may sometimes see free samples advertised on freebie sites but it's really uncommon these days.
Samples of what?
The title is "Here Comes The Hotstepper", the artist is Ini Kamoze. http://en.wikipedia.org/wiki/Ini_Kamoze