This method is rapid, sensitive and suitable for the monitoring of nicotinic acid, nicotinamide, and 3-cyanopyridine in effluent of related pharmaceutical manufacturing plants.
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As the strain sensing element of a structural health monitoring, the study and the application of the fibre-optic bragg grating (FBG) have been widely accepted.
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The simulation model for digital communication between protective relaying equipment and monitoring equipment of interval layer was suggested.
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In this paper, based on a long-term monitoring of water cycle in the water and soil conservation forest stands of Pinus tabulaeformis and Robinia pseudoacacia, the soil moisture deficit is calculated.
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In addition, with long-term monitoring of soil moisture in stands, the authors also give an appropriate managing density specifically for the water and soil conservation forests of P.
Tradescantia Micronuclei ( Trad-MCN ) test is a Well-validated system for in situ monitoring of gaseous mutagens or radiation and bioassay for to-xicity or clastogenicity of liquid types of environmental pollutants, drugs and food additives,For testing gaseous mutagens or radiation, excised Tradescantia inflorescences containing meiotic pollen mother cells may be exposed to the agent at the chosen sites of pollution or in the treatment chambers. For testing liquid types, the cuttings are allowed to ab...
A simple highly sensitive method for monitoring total tritium in air is described. The air was first passed through an ethylene glycole bubbler to remove HTO, then, over a heated catalyst for oxidizing HT gas to HTO which was collected in second ethylene glycol bubbler. Tritium was measured by liquid scintillation counter. The interference of absorption efficiency and recovery by sampling rate, relative humidity (R. H.), sampling time (absorbed volume) and tritium concentration in air were studied. Th...
This paper describes a monitoring method for microquantities of thorium in urea with Arsenazo-Ⅲ.The method is applicable to pre-cise monitoring o.l g of thorium contained in 5oo ml of urea sample.The determination is sensitive and simple in operation.It is suitable forprotective monitoring workers who mainpulate thorium and rare-earthcontaining mineral.