Measurement of suspended solids in water
For the food industry, by the environmental impact of the biggest factor is water, while food processing and pollution of the water environment, to prevent and
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Experiments for the determination of total dissolved solids
After the water sample is filtered and dried at a certain temperature, the solid residue obtained is called total dissolved solids, including non-volatile solub
Fluoride Detection in Agricultural Products by Ashing Experiment
Fluorine is an essential nutrient for the human body and a toxic pollutant. Fluorine in nature mainly exists in natural minerals such as fluorspar and apatite.
Determination of nitrate in agricultural products
The experiment for the determination of nitrate in agricultural products can be used for: (1) detecting the content of nitrate and nitrite in food; (2) as one o
Experimental determination of chromium in soil by colorimetric method of dibenzoyl dihydrazide
For food raw materials, soil pollution is an important factor affecting the yield, quality and even food safety of raw materials, especially the heavy metal con
Determination of nitrite in agricultural products
The level of nitrate and nitrite in food is one of the most important pollutants that affect food quality and jeopardize human health. Its content in food mater
Experiments on the determination of fluoride content in agricultural products by fluoride ion selective electrode method
Fluorine is an essential nutrient for the human body and a toxic pollutant. Fluorine in nature mainly exists in natural minerals such as fluorspar and apatite.
Improvement of the Koch method of acute toxicity testing
1, study the design of acute toxicity test of chemicals, master the determination of LD50. 2. Observe the toxic reaction of phoxim.
Handling of Petri dishes and plates
The manipulation of Petri plates is necessary for cell experiments such as (1) cell growth (2) cell propagation (3) cell inoculation.