-
Analysis of Herbicides in Water by On-Line In-Tube Solid-Phase Microextraction Coupled With Liquid Chromatography-Mass Spectrometry
Time of Update: 2021-02-12
We have developed a method using in-tube solid-phase microextraction coupled with liquid chromatography-mass spectrometry (SPME-LC-MS) for the assay of herbicides in water samples.
-
When Pfizer transports vaccines with dry ice, where is the risk?
Time of Update: 2021-01-01
and dry ice sublimation process solid gas, will produce great pressure, insulation box if the sealing is too good, once the temperature may be too high risk of explosion, so it is still not suitable for long-distance transport.
-
Chemical Strategy Daily: The drive differentiates and the liquid is still stronger than the solid
Time of Update: 2021-01-01
Chemical sector in the near future is mainly fundamental logic and transfer logic, winter gas restrictions and environmental protection to supply and cost to bring some support, such as methanol, urea and even PVC (electric stone), but PVC
-
Chemical Identification Strategies Using Liquid Chromatography-Photodiode Array-Solid-Phase Extraction-Nuclear Magnetic Resonance/Mass Spectrometry
Time of Update: 2020-11-14
However, the identification of key metabolites remains a limitation given the analytical effort necessary for traditional structural elucidation strategies.
-
High-efficiency liquid chromatography, liquid chromatography, liquid-solid chromatography fixed phase and flow phase.
Time of Update: 2020-10-25
Liquid chromatography with polar substances as fixed phase and non-polar solvents as flow phase, called positive phase distribution chromat ography, is suitable for separating polar compounds; .
-
Total investment of 1.32 billion! Jiangsu Ruiheng proposed to build 180,000 tons / year of liquid, solid epoxy resin device!
Time of Update: 2020-10-06
first phase project, the annual output of 248,000 tons of aromatic derivative products and 150,000 tons/year of direct oxidation oxidation oxycodropane project. The first phase of the carbon industry project is built in two phases, one of which
-
What is the difference between liquid soap and solid soap in preventing COVID-19 infection and spread?
Time of Update: 2020-08-06
, some strips of soap leave residue on the tray, some people may feel bad, and both have different carbon footprints. the use of bars of soap dates back at least to 2800 B.C., when the lipids of animals and plants react with alkalis
-
New and solid egg production capacity put 70%, liquid egg technology in the study
Time of Update: 2020-06-28
The company has Shandong, Shangyu, Xinchang three bases, Shandong mainly produces flavored fragrances, methionine products; PGr The company's liquid egg technology has been under study, in the future according to customer demand for production.
-
What is the difference between liquids and solid microbial agents?
Time of Update: 2020-06-20
First, liquid and solid packaging form > >. Microbial agent liquid packaging: the active microbial preparation packaging in plastic containers, generally using composite microbial agents, mainly composed of Bacillus spores, Bifidobacteria
-
Coating knowledge: introduction to self coating process of liquid coating and solid coating
Time of Update: 2020-04-03
It does not use solvent, but covers the fine powder of the coating material on the workpiece, melts it at a temperature higher than the melting point of the powder, and forms a paint film on the workpiece.
-
Coating knowledge: liquid coating PK solid coating which is more suitable for your home
Time of Update: 2020-04-03
It does not use solvent, but covers the fine powder of the coating material on the workpiece, melts it at a temperature higher than the melting point of the powder, and forms a paint film on the workpiece.
-
How to make the filter press realize solid-liquid evacuation?
Time of Update: 2019-11-06
How to make the filter press realize solid-liquid evacuation?
The filter plate of filter press realizes solid-liquid evacuation.
-
New progress in the measurement of molecular adsorption free energy at solid-liquid interface by Hong Wenjing / Yang Yang team of Xiamen University
Time of Update: 2019-09-17
Recently, the research group of Professor Hong Wenjing, School of chemistry and chemical engineering, Xiamen University, has developed a new method to measure the adsorption energy of molecules by using the single molecule electrical measuring instrument independently developed.
-
Li Jianfeng, Cheng Jun, Professor of Xiamen University: great breakthrough in the study of the configuration of water molecules on the solid-liquid interface
Time of Update: 2019-05-28
Professor Li Jianfeng and Professor Cheng Jun of the school of chemistry and chemical engineering of Xiamen University have made great breakthroughs in the study of the configuration of water molecules on the solid-liquid interface.
-
Application of spray drying technology in solid beverage
Time of Update: 2019-05-06
Spray drying technology has the advantages of large evaporation area, fast drying speed, low material temperature and easy continuous production.
-
[supramolecular chemistry] the latest exploration of lithium recovery: extraction of lithium from solid and liquid by supramolecular interaction
Time of Update: 2018-06-07
In the past 20 years, the world's demand for lithium has grown explosively, mainly because lithium plays an indispensable role in modern materials such as lithium-ion batteries
-
The effect of microwave drying and sterilizing machine technology in oral liquid manufacturing industry is obvious
Time of Update: 2017-10-20
There are only 2-3 operators for the microwave drying and sterilization machine, and more than 10 operators for the high temperature and high pressure equipment.
-
Analysis of the amplification effect of non injection liquid and semi-solid preparation from the microscopic aspect
Time of Update: 2017-09-18
To enlarge (or reduce) the technological process, the final basis for the manufacturer to make a decision is the economics of the product process, that is, the price of raw
-
The difference between liquid and solid materials in three-dimensional mixer
Time of Update: 2016-03-29
The three-dimensional mixer is a machine that uses mechanical force and gravity to mix two or more materials evenly
Hybrid machinery is widely used in various industries
-
Application of spray drying technology in solid pharmaceutical production
Time of Update: 2015-11-03
Different requirements for the physical properties of spray drying products are raised in terms of improving the preparation effect and taking the absorption effect of Zui final drugs.
