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Comparison of diferent aroma active compounds of Sichuan Dark brick tea (Camellia sinensis) and Sichuan Fuzhuan brick tea using gas chromatography–mass spectrometry (GC–MS) and aroma descriptive profle tests
aroma active compounds Sichuan Dark brick tea Sichuan Fuzhuan brick tea GC–MS aroma descriptive profle tests
2024/7/31
Sichuan dark brick tea (Camellia sinensis) and Sichuan Fuzhuan brick tea have signifcantly diferent aroma characteristics although both of them have almost the same processing methods. Thus, these two...
Lead and cadmium levels in raw cow’s milk from an industrialised Croatian region determined by electrothermal atomic absorption spectrometry
lead cadmium raw cow’s milk
2015/6/5
A simple and accurate method for lead and cadmium determination in raw cow’s milk by electrothermal atomic absorption spectrometry (ET-AAS) is described. Milk from fifteen farms near Križ in Zagr...
Determination of pesticide residues in avocado and almond by liquid and gas chromatography tandem mass spectrometry
pesticide residues almond
2014/11/26
This report describes a validation data of 279 pesticides using a
multiresidue method by LC-MS/MS and GC-MS/MS in avocado and
almond.
Validation data of five selected pesticides using QuEChERS by liquid chromatography tandem mass spectrometry
Validation data selected pesticides
2014/11/26
This report describes a validation data of five pesticides using a
multiresidue method (QuEChERS) by LC-MS/MS in tomato, pepper
and orange.
Pesticide analysis in teas and chamomile by liquid chromatography and gas chromatography tandem mass spectrometry
teas chamomile chromatography
2014/11/26
This report describes a validation data of 86 pesticides using a
multiresidue method by LC-MS/MS and GC-MS/MS in green tea, red
tea, black tea and chamomile.
Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry for Rice (Oryza sativa L.)Seed Phytochemicals
matrix variety Rice
2009/6/10
A quick and simple method for the evaluation of rice varieties using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI TOF-MS) was proposed and the results of the mas...
Laboratory Detection of Plastics in Seedcotton with Ion Mobility Spectrometry
Laboratory Detection Plastics Seedcotton Ion Mobility Spectrometry
2009/4/30
The US cotton industry wants to increase its market share and value throughout the world by supplying pure cotton. Removing contamination requires developing a means to detect plastics in seedcotton. ...
Rapid Method for the Determination of 180 Pesticide Residues in Foods by Gas Chromatography/Mass Spectrometry and Flame Photometric Detection
pesticide residue analysis multiresidue graphitized carbon black / primary secondary amine
2009/3/5
A method was established for the determination of 180 pesticide residues in fruits and vegetables. The procedure involved extraction with acetonitrile, followed by a salting-out step with anhydrous ...
Environmental distribution and novel high-throughput screening of APEO-degrading bacteria using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry（MALDI-MS）
alkylphenol polyethoxylate (APEO) APEO-degrading bacteria MALDI- MS typing by MALDI-MS
2009/3/5
Fifteen soil samples from the edge of a creek were investigated for alkylphenol polyethoxylate (APEO) degrading ability. Ten soil samples possessed PEG chain shortening activity and the other soil s...
Spectral Sensing of Aphid（Hemiptera：Aphididae）Density Using Field Spectrometry and Radiometry
Remote sensing spectral indices multispectral radiometry hyperspectral spectrometry greenbug (Schizaphis graminum Rondani) wheat (Triticum aestivum L.)
2009/1/12
The greenbug, Schizaphis graminum (Rondani), and bird cherry-oat aphid, Rhopalosiphum padi L., are aphid pests of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), sorghum (Sorghum bicolor L....
LEVELS OF BACTERIAL ENDOTOXIN IN AIR OF ANIMAL HOUSES DETERMINED WITH THE USE OF GAS CHROMATOGRAPHY – MASS SPECTROMETRY AND LIMULUS TEST
endotoxin organic dust air animal houses gas chromatography
2010/12/23
Air samples were collected on glass fi bre fi lters in 22 animal houses and 3 hay storage barns and examined for the presence of bacterial endotoxin with the Limulus (LAL) test and the gas chromatogra...
RAPID COUNTING OF LIQUID-BORNE MICROORGANISMS BY LIGHT SCATTERING SPECTROMETRY
light scattering spectrometry microorganism counting
2010/12/24
Fast and sensitive techniques are needed to determine microorganism presence in liquid samples. In this research, the feasibility of using light scattering spectrometry for enumerating the biological ...
USE OF MASS SPECTROMETRY FOR CHARACTERISING MICROBIAL COMMUNITIES IN BIOAEROSOLS
indoor air microbial communities bioaerosols bacteria fungi
2010/12/24
The use of chemical marker analysis for characterising microbial communities in organic dust samples is exemplified in a comparative study of dusts collected in a home and a swine confinement building...