Benzoyl peroxide in toluene was used to bleach chlorophylls in alcohol extracts from plants
fed with 14CO2 for improved direct measurement by liquid seintillation counting. The 0.5 …

A method is described for the liquid scintillation counting of 14C in plant tissues. Samples
are fixed, in the scintillation vial, in a solution of ethanol and acetic acid (3: 1) and …

A fast, economical, and reproducible method for the preparation of green plant samples for
14 C quantitation by liquid scintillation spectrometry is presented. Uniform weights of green …

Compared with sample preparation techniques which involve wet or dry combustion
(reviewed by Fuchs and de Vries, 1972), measurement of radioactivity in plant material by …

A method is described for the decoloration and partial solubilization of plant tissue with 2%
sodium hypochlorite. Following treatment of the digest with ammonia, the samples are …

A simple, efficient, and inexpensive method for measuring radioactivity as well as
chlorophylls a and b in a large number of plant tissue samples is presented. Chlorophyll is …

A nitric acid digestion method is presented for rapid and inexpensive preparation of 14 C-
labelled macrophyte tissue for liquid scintillation counting. No significant difference was …

Determination of 14C in solid residues and intact tissues has traditionally involved
combustion of samples to 14C02 (Fuchs and de Vries, 1972). However, recent meth allow …

The determination of photosynthetic activity by measurement of 14 C-labelled CO 2 fixation
in the light is usually carried out by scintillation counting after digestion and bleaching of the …

A persistent problem in preparing samples of radioactive plant tissue for scintillation
counting is that of reducing the colour quenching to acceptable levels. In a study involving …