Results 111 to 120 of about 11,031 (219)

Electron Capture Detector with Non-Radioactive Electron Source

open access: yesProceedings, 2017
Gas chromatographs equipped with electron capture detectors (ECD) are widely used for the analysis of electron affine substances. Achieving limits of detection in the low pptv-range, electron capture detectors are the most sensitive detectors available ...
Erik Bunert   +3 more
doaj   +1 more source

Determinación de compuestos orgánicos para el estudio de suelos contaminados: diseño de procedimientos analíticos para su adecuación a la nueva legislación española (R.D. 9/2005) [PDF]

open access: yes, 2007
Se ha realizado un diseño de protocolos de análisis de diversos compuestos orgánicos semivolátiles (pesticidas organoclorados, PCB, PAH y fenoles) determinados mediante técnicas cromatográficas basadas en métodos de la EPA para cumplir con los niveles ...
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Evaluation of Uncertainty in the Determination of Pesticide Residues in Tea Using GC-ECD [PDF]

open access: yes, 2017
Key indicator of quality in test results is the uncertainty value, which could be evaluated using several common approach. Uncertainty evaluation in a-endosulfan and bifenthrin in Oolong tea, and cypermethrin in green tea using bottom-up approach showed ...
Andreas, A. (Andreas)   +3 more
core  

Monitoring of Uniconazole by Using GC-ECD and GC-MSD [PDF]

open access: yesKorean Journal of Food Science and Technology, 2013
Eun-Jeung Kim   +6 more
openaire   +1 more source

Use of headspace solid-phase microextraction for the analysis and characterisation of volatile compounds in rumen contents : a thesis presented in partial fulfillment of the requirements for the degree of Masterate of Science in Chemistry at Massey University [PDF]

open access: yes, 2005
Appendix 2&3 removed due to copyright restrictions. Please consult print copy in Library.Volatile fatty acids (VFAs), alkyl phenols and indolic compounds are produced by rumen microbes during the fermentation of forages in ruminants.
Lu, Shengyi
core  

Investigation of Chlorinated Benzenes in Konya Ground Water With GC/ECD

open access: yesSelçuk Üniversitesi Mühendislik, Bilim ve Teknoloji Dergisi, 2005
Uçucu organik bileşiklerden olan klorlu benzenler tarafından yeraltı suyunun kirlenmesi oldukça önemli bir çevre problemidir. Bu nedenle benzen bileşiklerinden kaynaklanan kirlenmenin tespiti için belirli periyotlarla yeraltı suyunun izlenmesi gereklidir.
AYDIN, Mehmet Emin   +3 more
openaire   +1 more source

EVALUACIÓN DE PLAGUICIDAS 0RGAN0CL0RAD0S POR HS-SPME - GC/ECD EN LECHE PASTEURIZADA COMERCIALIZADA EN LA CIUDAD DE CARTAGENA (COLOMBIA) A AVALIAQÁO DOS PESTICIDAS ORGANOCLORADOS POR HS-SPME - GC/ECD EM LEITE PASTEURIZADO COMERCIALIZADAS NA CIDADE CARTAGENA (COLOMBIA) EVALUATION OF PESTICIDES BY HS-SPME ORGANOCHLORINE - GC / ECD IN PASTEURIZED MILK MARKETED IN THE CITY CARTAGENA (COLOMBIA)

open access: yesBiotecnología en el Sector Agropecuario y Agroindustrial, 2011
Los plaguicidas han sido utilizados en todo el mundo desde mediados del siglo XX, en campañas de Salud Pública y en prácticas agrícolas. Los Plaguicidas Organoclorados (POCs) presentan mayor impacto sobre el ambiente porque no son biodegradables, son ...
DENILES DEL CARMEN DE ARCO R   +1 more
doaj  

Determination of CHLORPYRIFOS by GC/ECD in water and its sorption mechanism study in a RHODIC FERRALSOL. [PDF]

open access: yesJ Environ Health Sci Eng, 2020
Schwantes D   +4 more
europepmc   +1 more source

Pyrethroids in abiotic and biotic environmental matrices [PDF]

open access: yes, 2011
Syntetické pyrethroidy tvoří hlavní skupinu syntetických organických insekticidů, které se aplikují nejen v zemědělství, ale také v domácnostech či zdravotnických zařízeních.
Kociánová, Veronika
core  

Graphene oxide dispersed with ferrite nano - particles as magnetic solid phase extraction adsorbent for chlorpyrifos and diazinon [PDF]

open access: yes, 2015
Magnetic graphene oxide, Fe3O4-GO has been synthesized through oxidation of graphite via modified Hummer’s method followed by a one step co-precipitation method.
Jamian, Siti Fatimah   +2 more
core  

Home - About - Disclaimer - Privacy