Microdetermination of Nitrogen-containing Pharmaceuticals with Bleaching Powder
نویسندگان
چکیده
منابع مشابه
Microdetermination of protein nitrogen with a dumbbell diffusion apparatus.
The use of a two-chamber, sealed microdiffusion apparatus has been investigated for the determination of protein nitrogen on samples containing 0.5 mg. protein. The apparatus is constructed from a ground-glass ball-and-socket joint, and all operations including digestion are performed in the designed apparatus. The method has been applied to the determination of nitrogen in tobacco mosaic virus...
متن کاملDust-free bleaching powder may not prevent symptoms in hairdressers with bleaching-associated rhinitis
OBJECTIVE Hairdressers have an increased risk for airway symptoms especially when using hair-bleaching powder containing persulfate. To minimize exposure, dust-free bleaching powder (DFP) has been made available. We studied the effects of regular powder (RP) or DFP on the airway symptoms of hairdressers with hair-bleaching associated rhinitis. METHODS Twelve hairdressers each performed three ...
متن کاملThe colorimetric microdetermination of urea nitrogen by the xanthydrol method.
Although many methods for the determination of urea nitrogen have been described, few have proved highly convenient for the accurate determination of small amounts of urea nitrogen without having to make use of special apparatus or techniques. Among the older methods, the Van Slyke gasometric method (1) is generally considered the most accurate, with an allowable error of 1 per cent. This metho...
متن کاملThe Microdetermination of Biological Copper with Oxalyldihydrazide.
Methods are described for the determination of microgram quantities of biological copper in aqueous medium as the intensely coloured oxalyldihydrazide-acetaldehyde complex (molar extinction coefficient 23,000 to 23,500). The methods are applicable on a routine basis to any biological material, in particular to serum, urine, or tissues, such as liver, brain, or kidney. In the case of urine a sim...
متن کاملNatural products containing a nitrogen-nitrogen bond.
As of early 2013, over 200 natural products are known to contain a nitrogen-nitrogen (N-N) bond. This report categorizes these compounds by structural class and details their isolation and biological activity.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Hospital Pharmacy
سال: 1976
ISSN: 2185-9477,0389-9098
DOI: 10.5649/jjphcs1975.2.51