16 batches of samples of 21 types of food in Beijing were unqualified
Time of Update: 2021-07-25
, wines, and fruit products, including 1238 batches of qualified samples and 16 batches of unqualified samples . A reporter from Beijing Youth Daily noted that the unqualified samples were mainly
The preparation and storage of biological samples are inseparable from the help of instruments
Time of Update: 2021-06-13
Chromatograph Gas chromatography is a chromatographic analysis method with gas as the mobile phase, which is mainly used to separate and analyze volatile substances.
Xinjiang spot-checked 7 batches of 746 batches of samples of 16 types of food, including soft white sugar, Wuren moon cakes, and deep-fried dough sticks.
Time of Update: 2021-06-04
> 1 ，1，：（）。 Anionic synthetic detergent, that is, the main component of detergent, washing powder, soap and other detergents often used in daily life, and its main component
Capillary Electrophoresis with Laser-Induced Fluorescence Detection of Proteins from Two Types of Complex Sample Matrices: Food and Biological Fluids
Time of Update: 2021-03-05
of performingboth steps in different ways are shown by detailing the analysis of the allergen β-lactoglobulin in food products for infantsand the analysis of the isoforms of alpha 1-acid glycoprotein, a potential biomarker, in serum and secretome.
Guangxi sampling 3 types of food 74 batches of samples white sugar test excellent value is not qualified
Time of Update: 2021-01-27
products a total of 3 categories of food 74 batches of samples. , 1 batch of sugar was found to be substandard. notification shows that the unqualified samples are: Liujiang County Baijiahui Supermarket Co., Ltd. sales, the name
Detection of Mycoplasma hyopneumoniae from Clinical Samples and Air
Time of Update: 2021-01-26
Piglets can be infected by gilts, low parity sows, but also by older sows ( 2 ).
However, carrier sows represent the most likely source of transmission, ofM.
Assay of Air Sample Eluates
Time of Update: 2021-01-25
Immunoassays use antibodies both to capture and visualize the chosen antigen.
Guangxi sampling 3 types of food 141 batches of samples vegetable products detected food additives
Time of Update: 2020-12-04
"GB 2760-2014 National Standard for Food Safety Food Additives" stipulates that the maximum use of pickled vegetables zhongshan pear acid and its potassium salt is 1.0g/kg (in sorbic acid).
Heavy! Scientists completed genome analysis of 28,000 tumor samples from 66 cancer types and identified 568 cancer-driven genes!
Time of Update: 2020-09-29
Analysis of the genomes of 28,000 tumor samples from six cancer types identified 568 cancer-driven genes; the findings could update data from the current Integrated Cancer Genome Platform (IntOGen) and hopefully help scientists discover mutated
Common knowledge of coatings: types of multifunctional coatings for air purification and existing problems
Time of Update: 2020-04-03
Core tip: adding nano materials to the interior wall coating can not only improve the traditional performance of the coating, but also give the coating the role of air purification
light mediated decarbonylation of fatty aldehydes in Minisci type alkylation at room temperature and air
Time of Update: 2019-10-19
Recently, Huang Huawen, Ji Xiaozhan and their collaborators from the green synthesis and catalysis team of Xiangtan University reported the visible light mediated aldehyde decarbonylation Minisci reaction in room temperature air, which realized the alkylation of azaarenes under mild conditions.
The difference between biens clean air type fume hood and common fume hood
Time of Update: 2019-09-30
As more and more laboratory users begin to choose ductless fume hoods, the manufacturers of clean air medicine storage cabinets summarize the following differences between the new
How to choose the type of medium efficiency combined air filter?
Time of Update: 2019-06-05
5. The initial resistance of medium efficiency combined air filter shall be ≤ 80pa.
Summary: what are the advantages of planktonic bacteria sampler over the same type of instrument
Time of Update: 2019-01-02
The floating bacteria sampler is a kind of porous suction dust bacteria sampler
The structure is unique and novel
It is divided into two parts: the upper part
Application cases of nitrogen blowing instrument (sample concentration instrument) in various industries
Time of Update: 2018-12-06
Nitrogen blowing instrument is widely used in agricultural residue analysis, environment, biological products, food, pharmaceutical and other industries because it can quickly blow
How to maintain the air volume hood / instrument?
Time of Update: 2017-11-20
4. If the air volume hood itself or the storage parts need to be cleaned, they can be scrubbed with a soft cloth stained with isopropyl alcohol or flexible cleaning agent.
A new type of intelligent on-line detection instrument for lack of material in medicine board packaging machinery
Time of Update: 2016-08-24
Advantages of the new type of intelligent on-line detection instrument for shortage of materials: 1) terminal detection, which directly detects the integrity of internal objects through the packaging box, is a new breakthrough in packaging detection technology.
Types and characteristics of hot air circulation oven
Time of Update: 2015-12-24
Generally, the temperature range of hot air circulation oven is room temperature + 250 ℃, and the high temperature type is room temperature + 500 ℃.
The difference between hot air circulation oven and bench type blast oven
Time of Update: 2015-09-25
2. By using the forced ventilation function, the air in the oven can be exhausted to make the material dry evenly and the product size suitable.
Brief introduction of air flow type rotary flash dryer
Time of Update: 2015-04-25
The hot air required for the production of the air flow type rotary flash dryer is sent to the hot furnace by the blower
After being heated, the air is divided into two