Application case of separating funnel oscillator in food industry

In recent years, there are some worrying problems in the field of food safety in China In Henan Province, the events of clenbuterol, dyeing steamed bread, fake beef and so on, the more dangerous is melamine, which not only appears in large quantities in milk, but also in eggs These food safety problems, like the current global financial crisis, have swept the whole earth and brought serious impact on people's life and health According to the situation of food safety, the inspection standards of food inspection institutions are more and more strict The workload of food inspectors is very large in one day In most of the chemical analysis process, the preparation of samples takes up most of the time A recent study shows that in the process of laboratory analysis, the time that laboratory staff only use to prepare samples correctly is more than 5 5% This data shows that the new breakthrough technology can greatly shorten the process In food detection, extraction is a typical experimental step In the extraction process, it usually requires three times of extraction If it is difficult to separate the samples, it requires the staff to oscillate for a long time in the process of artificial vibration, and the vibration force is large, so the time spent in this experimental operation is very long In such a day, a lot of time is spent in manual oscillation operation Are you worried about the long time spent in the extraction process? The separatory funnel oscillator can help you to solve this experiment trouble easily and save a lot of extraction time Next, let's take a look at some specific applications of the separatory funnel oscillator: 1 The analysis method of hygienic standard of edible hydrogenated oil and margarine GB / T 5009.77-2003 specifies the analysis method of hygienic standard of edible hydrogenated oil and margarine In the test step of sample treatment for testing the content of nickel and copper in margarine, add 30ml of 0.5mol/l hydrochloric acid to the sample, heat it in boiling water bath, and extract it three times with a separating funnel If the time required for one oscillation is 3min, the time required for three oscillations is 9min, if 10 samples are made in one day, three samples are measured in parallel, a total of 30 samples, so calculated, the time spent for extraction oscillation in one day is 270min In this experiment, if we use the funnel oscillator instead of the artificial oscillation, we can extract 10 samples at a time, which can be completed only three times At the same time, it has the function of timing As long as the staff set it up, they can do other experiments In this way, the staff can save a lot of valuable time in a day, and more importantly, the extraction efficiency of the funnel oscillator It is better than manual operation and greatly improves the work efficiency 2 Determination of benzoic acid in fruits and vegetables GB / T 12289-90 specifies the national standard method for the determination of benzoic acid in fruits, vegetables and products In the process of benzoic acid extraction, it is specified to extract the sample solution with hemi The traditional extraction method is the method of artificial oscillation The process of artificial oscillation can be replaced by the oscillation of separating funnel oscillator 3 Determination of penicillin in apple and hawthorn products GB / T 5009.185-2003 specifies the hygienic standard of penicillin limit in apple and hawthorn products In the process of penicillin extraction experiment, it is specified that the juice should be extracted by equal volume of hemi hemi In this experiment, the separation funnel oscillator can be used instead of artificial oscillation To sum up, the application of separatory funnel oscillator in food industry includes: 1 Determination of insecticidal ring residue in rice; 2 Analysis method of hygienic standard for edible hydrogenated oil and margarine; 3 Determination of benzoic acid in fruits and vegetables; 4 Determination of penicillin in apple and hawthorn products; 5 Extraction of HEMF from soy sauce; 6 Extraction of copper and iron from wine 7 Cadmium analysis of fish: extraction of analyzers 8 Separation of useful chemicals in tar 9 Lipid extraction of watermelon seeds 10 Rancidity test of fatty foods 11 Yin extraction of black tea 12 Determination of PCB accumulation of fish 13 Measurement of food additives