Shoot and root ground samples (0.5 g) were digested in 3:1 mixture of nitric acid and perchloric
acid at 150degC (Miller, 1998).
Standard fume hood types include benchtop, conventional, ductless, radioisotope, perchloric
, and acid-resistant models.
 kinetics and mechanism of Mn(ii) catalyzed oxidation of DArabinose and D-xylose by chromium(vi) ions in perchloric
acid medium was also reported.
The erythrocytes were washed with cold saline by centrifuging at 2000g for 5 min, precipitated by adding 6% of cold perchloric
acid (3mL), and centrifuged again at 2000g for 10 min.
and Basu S.N., 1980, "Kinetics and mechanism of oxidation of Derythrose and DL-glyceraldehyde by Cr (VI) and Vanadium (V) in perchloric
acid medium" Carbohydrate Research, 86, 7-16.
acid digest methods for analysis of major elements in plant tissue.
Acetic acid, perchloric
acid, and potassium permanganate were purchased from Merck, and methanol was from LabScan.
Synthesis and purification of LTX-diol and iso-LTX-dioL Approximately 20 mg of the waxy white solid described above was dissolved in THF:[H.sub.2]O:5% perchloric
acid (5:1:1) and stirred at 22[degrees]C for 1 hr.
Each freeze-dried sample (200 g) was homogenized in 5 mL 100 g [kg.sup.-1] perchloric
 These authors found that sulfuric acid and perchloric
acid in solution in anhydrous acetic acid were able to protonate a variety of weak bases such as ketones and other carbonyl compounds that do not form salts in aqueous solutions of the same acids.
Analar grade disodium salt of arsenazo-III and perchloric
acid (70 to 72 %) were used.