FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid.

The polysaccharide content in the eluates was monitored at 630 nm using the anthrone-sulfuric acid method, and the elution profile was plotted with tube number on the x-axis and absorbance on the ...

Jabbar had left behind, including supplies that could be used for an explosive device: acetone, bottles of sulfuric acid and bags labeled as potassium nitrate. At the three-bedroom home in ...

When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain ... This fluorescence is measured perpendicular to the beam using a photomultiplier ...

PROF. LUNGE'S monumental work on the manufacture of sulphuric acid is one of the acknowledged classics of chemical technology, and the soundest proof of its continued merit and widespread ...

Department of Materials Science and Engineering, Federal University of Sergipe, 49400-000 São Cristóvão, SE, Brazil ...

In order to influence the GO adsorption, it was modified using sodium chloride solutions with pH = 1 and pH = 5.6, as well as a 3% sodium hydroxide solution ... (28) Briefly, 6 g of graphite powder ...

If added, the concentration of exogenous ... After washing the resulting cell pellet for three times with 50 mM Tris (pH 7.4), cells were incubated with sulfuric acid (0.3 M) and sodium chloride (3.5 ...