Results 111 to 120 of about 384,770 (213)

Konya yeraltı suyunda klorlu benzenlerin GC/ECD ile analizi

open access: yes, 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   +2 more sources

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  

Supercritical fluid extraction and quantification of chlorpyrifos insecticides in fresh vegetables by gas chromatography with electron capture detection (GC-ECD) [PDF]

open access: yes, 2010
Supercritical Fluid Extraction (SFE) remains an attractive technique with great potentials for the selective determination of pesticides in complex matrices.
Rahman, Mohammad Arifur   +4 more
core   +2 more sources

Determination of chlorpyrifos in organically grown and conventionally grown vegetables using solid phase extraction (SPE) coupled to gas chromatography electron capture detector (GC-ECD) / Mohamad Azeem Mohd Idris [PDF]

open access: yes, 2017
Chlorpyrifos in different farming method of vegetables was determined by using solid phase extraction (SPE) and gas chromatography electron capture detector (GC-ECD).SPE sorbent packed with Cis was used in this study.
Mohd Idris, Mohamad Azeem
core  

DETERMINATION OF THE ORGANOCHLORINE PESTICIDE RESIDUES CONTENTS IN GRAPES BY SBSE-TD-GC-ECD ANALYSIS

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2016
Stir bar sorptive extraction (SBSE)-thermal desorption (TD) procedure combined with gas chromatography electron capture detection (GC–ECD) was applied to the determination of 20 organochlorine pesticides (OCPs) in six white Romanian grape varieties ...
Ioan SIMON   +3 more
doaj  

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

气相色谱电子捕获检测食品中的挥发性亚硝胺

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1986
早在1956年就报道了N-二甲基亚硝胺具有致癌作用。从此以后,科学家们对N-亚硝基化合物进行了广泛深入的研究,发现这类化合物有300多种,其中约90%具有致癌活性,这类化合物,在鱼、肉、蛋、奶以及腌渍菜等食品中含可检测出痕迹量,因而促使人们进行更灵敏的检测方法的研究。由于Z-亚硝胺的挥发性、光解性以及氧化还原性,使得建立检测方法的难度很大。迄今为止,还没有一个通用的规范化的方法为大家所接受。一般认为气相色谱—质谱(GC—MS)法,气相色谱—热能分析(GC—TEA)法是最佳方法,但由于这两个方法设备昂贵 ...
杨容甫
doaj  

Równoczesne oznaczanie wybranych insektycydów i atrazyny w glebie techniką MAE-GC-ECD [PDF]

open access: yes, 2013
The procedure for simultaneous extraction from soil and determination by means of GC–ECD insecticides: aldrin, dieldrin, endrin and herbicide: atrazine was worked out.
Czalicka, M.   +2 more
core  

ANÁLISE DE ALFA E BETA-BHC POR GC-ECD: COMO GARANTIR A FIDEDIGNIDADE DOS RESULTADOS EM ESTUDOS AMBIENTAIS?

open access: yesRevista Águas Subterrâneas, 2010
Investigação de áreas contaminadas por pesticidas organoclorados é de grande relevância por serem compostos persistentes e tóxicos. Traços destes compostos em água subterrânea podem representar risco à saúde humana, em função da exposição do receptor ...
Patrícia Ferreira Silvério   +3 more
doaj  

Detecção de éteres difenílicos pentabromados em águas para consumo humano por SPE-GC/ECD

open access: yes, 2012
Tese de mestrado, Controlo de Qualidade e Toxicologia dos Alimentos, Universidade de Lisboa, Faculdade de Farmácia, 2012Esta dissertação de mestrado tem por objectivo a implementação e validação de um método de SPE-GC/ECD para a análise de éteres ...
Silva, Marina Salgado Vides
core  

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