Showing 1-28 of 28 results for "45576"
Xingdi Chu et al.
Se pu = Chinese journal of chromatography, 22(1), 30-32 (2005-02-17)
A reversed-phase high performance liquid chromatographic method (HPLC) was established for determination of isothiocyanates in human urine, which used the reaction of propyl isothiocyanate with 1,2-benzenedithiol as reference instead of the synthesis of 1,3-benzodithiole-2-thione. The linear regression of the standard...
Luis O Ruzo
Pest management science, 62(2), 99-113 (2005-11-26)
Production and use of methyl bromide, a soil fumigant, are being restricted because of this chemical's deleterious effects on stratospheric ozone concentrations. Several products, some of which are currently used as soil fumigants, are being considered as possible replacements for...
Li-Tse Ou et al.
Archives of environmental contamination and toxicology, 51(2), 164-173 (2006-04-04)
This study was conducted to examine the effects of three application methods of metam sodium (broadcast, single irrigation drip tape delivery, and double irrigation drip tape delivery) and two plastic covers (polyethylene film and virtually impermeable film) on volatilization and...
James E Woodrow et al.
Journal of agricultural and food chemistry, 56(16), 7373-7378 (2008-08-06)
Air concentrations of methyl isothiocyanate (MITC) were determined near two fields treated with metam-sodium (MS) by subsurface drip irrigation. The two study fields showed measurable airborne MITC residues during application of MS and for periods up to 48 h postapplication....
Y Zhang et al.
Journal of environmental quality, 34(5), 1566-1572 (2005-08-11)
Recent studies have observed enhanced degradation of methyl isothiocyanate (MITC) from repeated fumigation in agricultural soils. Little is known about fumigant degradation in forest and nursery soils. This study was conducted to determine degradation rates of MITC and chloropicrin (CP)...
Methyl isothiocyanate residential community air assessment for South Franklin County, Washington.
J H Merriman et al.
Bulletin of environmental contamination and toxicology, 78(1), 19-23 (2007-03-03)
Marie Bretaudeau Deguigne et al.
Clinical toxicology (Philadelphia, Pa.), 49(5), 416-422 (2011-07-12)
Introduction. The objective was to evaluate the toxicity of poisoning by metam sodium, a dithiocarbamate fumigant, the breakdown products of which are methyl isothiocyanate (MITC), carbon disulphide (CS2), and dihydrogen sulphide (H2S). Methods. This is a retrospective, observational case series...
Catherine R Simpson et al.
Pest management science, 66(6), 686-692 (2010-03-17)
Metam-sodium (MS, sodium methyldithiocarbamate) has been identified as a promising alternative chemical to replace methyl bromide (MeBr) in soil preplant fumigation. One degradation product of MS in soil is the volatile gas methyl isothiocyanate (MITC) which controls soilborne pests. Inconsistent...
Michael L Dourson et al.
Regulatory toxicology and pharmacology : RTP, 58(2), 181-188 (2010-04-22)
The preplant fumigants, metam-sodium, metam-potassium, and dazomet undergo decomposition to the biocide methyl isothiocyanate (MITC) in moist soils. Since MITC vapor can migrate from its site of application, we developed an estimate of health protective concentrations for airborne exposures to...
Byron L Candole et al.
Pest management science, 63(5), 468-475 (2007-04-03)
The effects of metam-sodium application rate on soil residence time, spatial and temporal distributions of methyl isothiocyanate and pest control efficacy were studied in a Georgia sandy soil. Metam-sodium 420 g L(-1) SL was drip applied at rates of 147...
Shachaf Triky-Dotan et al.
Phytopathology, 99(4), 362-368 (2009-03-11)
We studied the development of accelerated degradation (AD) of methyl isothiocyanate (MITC) following repeated applications of its parent compound, metam-sodium (MS). Laboratory studies and four sets of field experiments were conducted during 2002-04 in three commercial fields in Israel. Repeated...
Y Zhang et al.
Chemosphere, 68(3), 445-454 (2007-02-10)
The environmental fate of fumigants methyl isothiocyanate (MITC) and chloropicrin (CP) is of great concern for potential air and groundwater contamination while retaining sufficient concentrations for pest control efficacy. The emission, gas phase distribution, leaching, and persistence of MITC and...
Shachaf Triky-Dotan et al.
Phytopathology, 100(4), 367-375 (2010-03-09)
Preplant soil fumigation with metam sodium is used worldwide to control soilborne diseases. The development of accelerated degradation of pesticides in soil, including metam sodium, results in reduced pesticide efficacy. Therefore, we studied microbial involvement in accelerated degradation of methyl...
Mei Lin Wang et al.
American journal of industrial medicine, 52(12), 909-915 (2009-10-24)
Accelerated loss of forced expiratory volume in 1 s (FEV(1)) in an individual is considered an indicator of developing lung disease. We investigated longitudinal FEV(1) slopes, calculated by simple linear regression, and adverse health outcomes after 10-30 years, among 1,428...
S Chen
Biomedical chromatography : BMC, 20(8), 718-728 (2005-10-18)
Amino acids were derivatized with sulfur-containing reagents in alkaline medium and enantioresolved by HPLC on a teicoplanin chiral stationary phase. Much better resolution was achieved using methanol-based mobile phase compared with elution with acetonitrile-based solvent mixture. The value of selectivity...
Keiji Nishiwaki et al.
Bioorganic & medicinal chemistry, 15(3), 1341-1345 (2006-11-28)
Tetrahydrobenzotriazines, a novel class of heterocyclic compounds, were synthesized. Examination of their biological activities resulted in the discovery that some of them possess potent nematocidal activity.
Yonglin Ren et al.
Journal of economic entomology, 101(2), 623-630 (2008-05-08)
Australian Standard White wheat, Triticum aestivum L. (a marketing grade with mixed grain hardness),with a moisture content of 12.5% was fumigated with a new ethyl formate formulation (95% ethyl formate plus 5% methyl isothiocyanate) identified and developed by Commonwealth Scientific...
Allergic contact dermatitis due to dazomet absorbed by agricultural rubber boots.
Chika Ohata et al.
Acta dermato-venereologica, 93(1), 81-82 (2012-02-16)
Michael O'Malley et al.
Journal of agromedicine, 10(4), 27-42 (2006-05-17)
To evaluate the health effects of methyl isothiocyanate (MITC) and other byproducts resulting from the soil-incorporated (shank) application of 25,000 pounds of metam-sodium on July 8, 2002, near the community of Arvin, California. Residents in a four-block area were interviewed...
Lin Ying Li et al.
Journal of environmental quality, 35(3), 707-713 (2006-04-06)
Metam-sodium had become the most heavily used soil fumigant in recent years as the deadline approached for methyl bromide to phase out in January 2005. After application, metam-sodium decomposes rapidly to methyl isothiocyanate (MITC), a highly toxic compound capable of...
Hany E S Marei et al.
Journal of cellular physiology, 230(7), 1614-1629 (2014-12-24)
Parkinson's disease (PD) is a neurological disorder characterized by the loss of midbrain dopaminergic (DA) neurons. Neural stem cells (NSCs) are multipotent stem cells that are capable of differentiating into different neuronal and glial elements. The production of DA neurons...
Katy L Swancutt et al.
Chemosphere, 81(3), 339-344 (2010-08-11)
Methyl isothiocyanate (MITC), a toxic and corrosive skin and respiratory irritant, is a common soil fumigant byproduct which has become an atmospheric, aqueous, and soil contaminant. The work described here examines the degradation and potential removal of MITC from contaminated...
William S Cain et al.
Regulatory toxicology and pharmacology : RTP, 58(2), 173-180 (2010-07-17)
An unpublished laboratory study by Russell and Rush (1996) showed that human subjects sense the presence of methyl isothiocyanate (MITC) via the eyes at concentrations as low as hundreds of ppb in air, with dependence upon duration of exposure. The...
YongLin Ren et al.
Pest management science, 68(2), 194-201 (2011-07-23)
Methyl bromide is being phased out for use on stored commodities, as it is listed as an ozone-depleting substance, and phosphine is the fumigant widely used on grains. However, phosphine resistance occurs worldwide, and phosphine fumigation requires a long exposure...
Dong Wang et al.
Pest management science, 62(3), 263-273 (2006-02-14)
Adequate concentration, exposure time and distribution uniformity of activated fumigant gases are prerequisites for successful soil fumigation. Field experiments were conducted to evaluate gas phase distributions of methyl isothiocyanate (MITC) and chloropicrin (CP) in two forest-tree nurseries. Concentrations of MITC...
Ben Warton et al.
Pest management science, 61(9), 856-862 (2005-07-13)
Enhanced biodegradation of soil-applied pesticides has long been correlated with soil pH above ca 6.5-7.5, but the possibility of confounding or interdependence with calcium, given that soil calcium concentration increases exponentially as pH rises above that range, has not previously...
Methyl isothiocyanate in wine.
C Rostron
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 30(9), 821-823 (1992-09-01)
Elisabeth A Wade et al.
The journal of physical chemistry. A, 115(21), 5319-5323 (2011-05-11)
Methylisothiocyanate (CH(3)NCS) was photolyzed at 193 and 248 nm, and the resulting time-resolved infrared emission was observed. Similar experiments were performed on methylthiocyanate (CH(3)SCN) photolyzed at 193 nm. Previous work suggested that these isomers undergo excited-state isomerization prior to dissociation...

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.