Phosphate removal from hydrogen peroxide solutions using the ion exchange resin IRA-400.

Accurate determination of nutrients in food is becoming increasingly important. Minerals and other trace elements can be determined by a variety of highly sensitive methods, but complete mineralization of the sample is essential for correct quantification. Hydrogen peroxide is a key reagent for destruction of organic matter in conjunction with sulfuric acid.

Plant senescence and crop productivity.

Senescence is a developmental process which in annual crop plants overlaps with the reproductive phase. Senescence might reduce crop yield when it is induced prematurely under adverse environmental conditions. This review covers the role of senescence for the productivity of crop plants.