Soil and agro-chemistry analytical methods [M] Lu R-K ( 鲁如坤) . Soil and Agro-chemical Analytical Methods. Beijing: China Agricultural Science and Tech- nology Press,1999 ( in Chinese)... RK Lu 被引量: 177发表: 1999年 Estimation of nitrogen, phosphorus, and potassium contents in the ...
Elucidating Fundamental Mechanisms in Soil and Environmental Chemistry: The Role of Advanced Analytical, Spectroscopic, and Microscopic Methods Soil chemists have a rich history of using advanced analytical and spectroscopic methods for the characterization of soil constituents and for the examinat... PM ...
Honey is a natural food produced by honeybees and contained approximately 200 distinct chemical compounds. The chemical compositions are dependent on the floral and geographical origin of the nectar collected by the bee. The physicochemical properties of honey such as moisture content, pH, free acidit...
Department of AgrochemistryCommunications in Soil Science and Plant AnalysisKovacs AB, Prokisch J, Kovacs B, Palencsar AJ, Gyori Z, Loch J (1999) Determination of sulphur in plant extracts by ion chromatograph—hydraulic high-pressure nebulizer Inductively coupled plasma atomic emission spectrometer (...
Theory and principles of SPE Solid-phase extraction (SPE) is an effective way to prepare samples in chemistry. A sample collection and analysis gap can be closed using SPE as one of the methods. It is rarely used with no further preparation steps, such as dilution or pH adjustment [1,2,...
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etc. Combining it with the analytical chemistry methods have become a promising way for coal analysis. In this work, LIBS instruments for collecting coal spectra, pretreatment methods for coal samples, preprocessing of coal data, and analytical chemistry methods for coal analysis were summarized. More...
Methods Preparation of the plant extract The fresh papaya leaves were collected from the papaya plant and were cut into fine pieces and dried under shade. After drying, it was powdered and used for further studies. One gram of leaf powder was taken in 100 ml Erlenmeyer flask containing double...
grown in non-sterile natural soil by using liquid chromatography-hybrid triple quadruple-linear ion trap (LC-QqQ(LIT)) mass spectrometry. The Synergi Fusion C18-based column was found to be effective for sufficient retention and separation of nine intact glucosinolates without the need for time-con...
of Northern Italy were characterized using different analytical methods: Spectrophotometric analysis of phenols, flavones and flavonols, and DPPH radical scavenging activity, HPLC, NMR, HSPME and GC–MS and HPLC–MS Orbitrap. Balsam and moisture content were also considered. No statistical differences ...