Shoot dry matter was ground in a Wiley mill and digested in a nitropercloric solution, P levels were determined by colorimetry, and Ca and Zn levels were determined by atomic absorption ...

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Fifty grams of pulverized material is then fire assayed by atomic absorption spectrophotometry (AA). Initial assays with results above 3.0 ppm gold are re-assayed using a gravimetric finish.

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The method is based on the oxidation of hemoglobin and its derivatives other than sulfhemoglobin in the presence of potassium ferrichanide to methemoglobin which reacts with potassium cyanide to a ...

G.* *These spectrophotometric studies were made by Dr. F. Lee Rodkey, of the Biochemical Department, Harvard Medical School. No enlargement of the liver and spleen was detectable on physical ...

Over time, bread has remained a staple food consumed by most families worldwide, including Nigeria. It has emerged as one of ...

Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States Department ...