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HPLC reagents
Of water rarefied with the preparation that exceeds pure water
Summary this is a rarefied He Chaochun about water the overview of water preparation. The technology that introduced all sorts of rarefied water and certain recently progress. Include distillation law, ion exchange law, electrodialysis law...
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Of pyridine rarefied
Boiling point 115.5 ℃ , refractive index 1.509 5, relative to density 0.981 9. Analyse pure pyridine to contain a few moisture content, can use for general experiment. If want to make,get anhydrous pyridine, can change pyridine a...
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Chemical reagents generality
Current, chemical reagents oneself is extensive apply at technology of science of sanitation of industry, agriculture, medical treatment, life, biology, environmental protection, the sources of energy each industries of the scientific...
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The convection in fluid photograph color atlas changes the requirement of the ph
1) dissolvent must " clean " , need to pass impurity of grain of filter plate eliminate before use, when necessary, add a filter plate again in the mouth that take shape, with the grain that eliminate may bring by pump 2) must contro...
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About the intellectual introduction of chemical reagents respect
Inorganic analyses reagent Inorganic analysis reagent (Inorganic Analytical Reagent) it is the commonly used inorganic chemistry article that is used at chemical analysis. Its purity is taller than industrial product, foreign matter is...
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The Pka of fluid of commonly used amortize is worth
Amortize fluid Molecular quantity Pka value Amortize limits TrisA 12.1 8.08 7.1- 7.9 HepebS 283.3 7.47 7.2- 8.2 MposC 209...
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Pure water and exceed pure water
Pure water, exceed pure water year old, the name that although be an experiment,uses water, cannot indicate however the purity of water. water medium electric contaminant purify is led to resistor when achieving 18.2M Ω .com@25 to...
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Commonly used electrophoresis amortize fluid
Amortize fluid Use fluid Thick store fluid (every litres) Tris- second is acerbity (Tae) 1 × : 0.04mol/l Tris- second is acerbity 50 × : 242g Tris is alkaline 0.00...
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