Automated Headspace Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry
Time of Update: 2021-02-12
The method for the determination of multiclass pesticides in water samples by headspace solid-phase microextraction and gas chromatography-mass spectrometry (HS-SPME-GC-MS) is described.
Longjiang Wanggang a furniture factory to steal waste water waste gas was heavily punished after continuing
Time of Update: 2021-02-08
of wastewater, has been suspected of criminal offences. Recently, Longjiang police and environmental protection departments to carry out joint law enforcement of the plant, in accordance with the law to seal the plant, control of the main person in charge
Gas Chromatography-High-Resolution Mass Spectrometry-Based Method for the Simultaneous Determination of Organotin Compounds in Water
Time of Update: 2021-01-25
A gas chromatography-high-resolution mass spectrometry (GC-HRMS)-based method has been developed for the accurate and sensitive determination of nine organotin compounds in water: tetrabutyltin, tributyltin, dibutyltin, monobutyltin, triphenyltin, diphenyltin, monophenyltin, tricyclohexyltin, and dicyclohexyltin.
The quality control department is out! Water-resistant putty is required on public walls from October 1
Time of Update: 2021-01-09
The use of water-resistant putty on the walls of public buildings has been implemented, which also illustrates the importance of water-resistant putty to ensure the quality of wall coating.
The capillary column gas chromatography measures benzene in water-based epoxy coatings
Time of Update: 2020-12-29
of the relative correction factor of 2.2.2 toluene was called 0.0206g, 0.0220g, 0.0217g, and the mass of the internal object was 0.0219g, 0.0205g, 0.0217g, and the peak area of benzene was measured.
Study on gas chromatography-mass spectrometrometrography for VOC, water-based coatings
Time of Update: 2020-12-10
From the experimental results, stirring extraction method is more likely to obtain high VOC recovery rate than ultrasonic extraction method, i.e. with higher extraction efficiency.
Gas chromatography determines VOC in water-based coatings
Time of Update: 2020-12-09
0 With the increasing attention paid to the quality of indoor environmental protection, the content of volatile organic compounds (VOCs) in water-based coatings, an interior decoration material, has received widespread attention. Although
Moisture in water-based coatings is measured by gas chromatography
Time of Update: 2020-12-05
1 With the increasing attention paid to the quality of indoor environmental protection, the content of volatile organic compounds (VOCs) in water-based coatings, an interior decoration material, has received widespread attention. China has
Blow-sweeping gas chromatography determines benzene products in water-based coatings
Time of Update: 2020-12-01
of the sample is greater than 80%. 1 experimental part 1. 1 Instruments and reagents gas chromatography, model Agilen 7890A GC, Agilent Technology Co., Ltd.; Fully automatic blow-sweep collector (with Solatek 72 Multi - Matrix Vial
Capillary column gas chromatography determines benzene and toluene in water-based epoxy coatings
Time of Update: 2020-11-28
flow: 0.8mL/min). gasification chamber temperature: 1 6 0 degrees C; E L204 electronic balance; K Q-300D E-type CNC ultrasonic cleaner; internal targets: isodol (analytical pure); calibration compounds: benzene, toluene
Gas chromatography determines the uncertainty of water content in water-based coatings
Time of Update: 2020-11-28
results the discussion, different parameters and influences contribute differently to determining uncertainty. In this paper, the effects of sample quality, specimen quality, quality of the inner subject matter in the sample solution, quality
Foshan Jiujiang Town, a furniture factory spray paint exhaust gas environmental protection department ordered rectification.
Time of Update: 2020-09-27
Liang, a citizen, told a reporter to help, Jiujiang Town Shatou Industrial Park Area A Zhenye East Four Road, a furniture factory painting operation, the emissions of pungent exhaust gas.
Lu anti-pharma stealing sewage water was exposed stock price plummeted, the environmental protection department has stepped in
Time of Update: 2020-06-30
AaA Beijing, December 26 , according to CCTV news yesterday reported that Shandong Lu anti-medicine a large number of anti-drug excretion of antibiotic sewage, the concentration of supernatural water bodies 10,000 times.
Common knowledge of coating: the development of anti condensation water heavy-duty anti-corrosion coating for flue gas pipeline
Time of Update: 2020-04-03
Core tip: generally, there are four types of chimneys: brick chimneys, reinforced concrete chimneys, insulating bricks and steel chimneys
The main function of chimney
Safety precautions for use of gas-fired hot water boiler
Time of Update: 2019-08-26
8. If the gas heating water heater is not used for a long time, please turn off the air source and cut off the power supply.
Discussion on the purification of water and gas in clean room
Time of Update: 2018-05-18
Especially bacteria, which are difficult to deal with in the preparation of pure water, including viruses and pyrogens, have particle sizes of μ m and nm.
treatment equipment, Nan'an water treatment equipment, Shishi water treatment equipment, Longhai water treatment equipment, Zhangping Water Department
Time of Update: 2009-10-18
Drinking water treatment equipment series include: pure water equipment; mineral water equipment; automatic bottle (barrel) filling equipment; and provide ozone generator and other products.
How to choose a safe and easy-to-use gas stove and water heater
Time of Update: 2007-02-01
In the face of numerous brands, models and various introductions from the salesmen, it is not easy for customers to choose a gas appliance (cooking stove and water heater) that is suitable for their own and easy to use.