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"Sensor Method for Determination of Headspace Gas Content in Food Plastic Packaging Containers" solicits opinions

 Time of Update: 2022-05-26

This standard describes the use of sensors to determine the content of different headspace gases in plastic food packaging containers .
"Portable FTIR Method for Determination of Gaseous Pollutants in Exhaust Gas from Stationary Pollution Sources" released

 Time of Update: 2022-05-01

This standard specifies a portable Fourier transform infrared spectrometry method for the determination of gaseous pollutants (SO2, NO, NO2, CO, CO2) in waste gas from stationary pollution sources .
Zhongtai Group intends to cooperate with Sinopec: on the 600,000-ton natural gas method BDO project

 Time of Update: 2022-04-15

The meeting mentioned Zhongtai Petrochemical Group Meike Industrial Park and the proposed 2×300,000-ton BDO project , and Zhongtai Group’s plan to transfer natural gas to acetylene technology from Sinopec Chuanwei Chemical Co.
Determination of Alkyl Mercury in Solid Waste Leachate Purge and Trap/Gas Chromatography-Cold Atomic Fluorescence Method (2)

 Time of Update: 2022-03-12

0 pg/L, 100 pg/L) that meet the detection limit of the instrument, linear range and actual sample mass concentration, and quantify by external standard method .
Determination of Alkyl Mercury in Solid Waste Leachate Purge and Trap/Gas Chromatography-Cold Atomic Fluorescence Method (1)

 Time of Update: 2022-03-12

Five, pre-treatment(1) Preparation of leaching solution"Semi-Volatile Organic Compound Analysis Technology-Preparation of Sulfuric Acid and Nitric Acid from Leachate"(2) Steaming letterAccurately measure 45mL pure water (or sample, need to add 0.
Preparation method of ammonia gas or liquid ammonia

 Time of Update: 2021-12-30

[Physical and chemical properties] Ammonia is a colorless gas or liquid with a strong pungent odor .
Industrial Ethylene Liquid and Gas Sampling Method (2)

 Time of Update: 2021-12-13

Before sampling, use sample gas to flush the sampling tube and sampler . After the sampler is flushed, close valve D and start sampling .
Industrial Ethylene Liquid and Gas Sampling Method (1)

 Time of Update: 2021-12-13

After the sampling operation is completed, close valve P'and valve P, open valve Q, and remove the sampler after releasing the pressure .
Polyplastics uses new detection methods to detect and prevent gas combustion during injection molding

 Time of Update: 2021-10-11

, the world's leading supplier of engineering thermoplastics, has discovered a variety of solutions that can effectively help processors reduce injection molding Gas combustion phenomenon that occurs in the process .
Shengli Engineering's "A Gas Reverse Circulation Drilling Method" was patented

 Time of Update: 2021-09-30

　　China Petrochemical News Network News Recently, Shengli Petroleum Engineering Company Drilling Technology Research Institute "a gas reverse circulation drilling method" obtained the national
Brief introduction of large-scale instrument analysis method-gas chromatography (2)

 Time of Update: 2021-09-21

Chromatographic quantitative methods include calibration area normalization method, internal standard method and external standard method .
Brief introduction of large-scale instrument analysis method-gas chromatography (1)

 Time of Update: 2021-09-21

1. Gas Chromatography>Gas chromatography is a rapid development after the 1950s to separate and analyze various components in complex mixtures
Determination method of glucocorticoid drug residue analysis technology-gas chromatography-mass spectrometry

 Time of Update: 2021-09-20

of betamethasone and triamcinolone acetonide in animal excrement . By optimizing the derivatization procedure, adding pyridine chlorochromate and potassium dichromate
Determination methods of macrolides and lincosamide drug residues-microbiological method and gas chromatography

 Time of Update: 2021-09-20

The author also used GC-NPD and gas chromatography-mass spectrometry (GC-MS) to establish a qualitative and quantitative multidimensional analysis method for the determination of lincomycin and spectinomycin residues in animal foods .
Development of Gas Chromatography Method for Pesticide Residue Detection

 Time of Update: 2021-09-09

Among them, the commonly used flame photometric detector (FPD), nitrogen phosphorus detector (NPD), electron capture detector (ECD), hydrogen flame ionization detector (FID), thermal conductivity detector (TCD) and mass spectrometer ( MS) and the like .
Preparation of TiO2 catalyst by gas phase method

 Time of Update: 2021-06-19

>. At present, domestic and carrier applications are: zeolite, silica gel, activated alumina, stainless steel wire, glass, optical fiber and the like . Porous carriers
A gas chromatography-mass spectrometry water quality determination method standard solicits opinions

 Time of Update: 2021-06-14

>In order to meet the progress of environmental protection work and the needs of environmental monitoring, we urgently need to develop fast and sensitive monitoring and analysis methods for semi-volatile organic compounds in water.
Analysis of Endocrine Disruptor Pesticides in Adipose Tissue Using Gas Chromatography-Tandem Mass Spectrometry: Assessment of the Uncertainty of the Method

 Time of Update: 2021-02-01

The results show that the sources of largest uncertainty are those relative to the balance calibration, from the gravimetric step, and both the relative uncertainty associated with the recovery and the intermediate precision of the method.
A Multianalyte Method for the Quantification of Current-Use Pesticides in Human Serum or Plasma

 Time of Update: 2021-01-30

We propose a sensitive and accurate analytical method for quantifying 29 current-use pesticides in human serum or plasma.
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.

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