摘要:
The invention relates to a method and a device (16) for detecting volatile analytes in air samples, where a mass sensitive sensor (20) with at least one sensor area (21) which is equipped with a surface layer with selective sensitivity for the analyte(s) to be detected is brought into contact with the air sample to be analyzed, the mass change of the surface layer is detected in the form of electrical signals and the electrical signals are evaluated. It is provided in accordance with the invention that the sensor signal is already evaluated at a point in time at which the maximum sensor signal for the analyte concentration in question is not yet obtained.
摘要:
The present invention relates to a method and a device for detecting fumigants in air samples. The device can be designed for example as a portable analyzer 10 equipped with a stab probe 11 for sampling soil air. There are provided detection means 16 which, upon contact with the air sample, generate electrical signals which depend on the concentration of the fumigants to be detected in the air sample. In accordance with the invention, the detection means 16 comprise at least one mass-sensitive sensor, for example an array of quartz microbalances, which have suitable selective surface layers.
摘要:
The invention relates to a method and a device (16) for detecting volatile analytes in air samples, where a masssensitive sensor (20) with at least one sensor area (21) which is equipped with a surface layer with selective sensitivity for the analyte(s) to be detected is brought into contact with the air sample to be analyzed, the mass change of the surface layer is detected in the form of electrical signals and the electrical signals are evaluated. It is provided in accordance with the invention that the sensor signal is already evaluated at a point in time at which the maximum sensor signal for the analyte concentration in question is not yet obtained.
摘要:
Crop protection granules based on the active substance tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione and comprising an outer shell having a proportion by weight of from 0.1 to 50% by weight, based on the granules, of which at least 50% by weight consists of sulfur or sulfur compounds.
摘要:
The invention relates to solid plant protection compositions comprising: a) liquid or low melting point polyalkoxylate; and b) a carrier based on relatively high molecular weight sulfonate, wherein (i) the weight ratio of liquid or low melting point polyalkoxylate to plant protection active agent is at least 1:2; (ii) the proportion of liquid or low melting point polyalkoxylate, based on the total weight of the relatively high molecular weight sulfonates, is at least 30% by weight; and (iii) the weight ratio of liquid or low melting point polyalkoxylate to relatively high molecular weight sulfonate is at most 3:1. The invention also relates to processes for their preparation and the use of the plant protection compositions for the treatment of plants and their habitat as well as corresponding processes, and also spray mixtures comprising such a plant protection composition.
摘要:
The invention relates to solid plant protection compositions comprising: a) liquid or low melting point polyalkoxylate; and b) a carrier based on relatively high molecular weight sulfonate, wherein (i) the weight ratio of liquid or low melting point polyalkoxylate to plant protection active agent is at least 1:2; (ii) the proportion of liquid or low melting point polyalkoxylate, based on the total weight of the relatively high molecular weight sulfonates, is at least 30% by weight; and (iii) the weight ratio of liquid or low melting point polyalkoxylate to relatively high molecular weight sulfonate is at most 3:1. The invention also relates to processes for their preparation and the use of the plant protection compositions for the treatment of plants and their habitat as well as corresponding processes, and also spray mixtures comprising such a plant protection composition.
摘要:
The present invention relates to the use of specific quaternized bioregulatory active ingredients in combination with triazole derivatives, in particular metconazole or an agriculturally utilizable salt thereof. Corresponding compositions are likewise described.
摘要:
The present invention relates to compositions based on a homogeneous, aqueous phase comprising at least one active ingredient from the class of the quaternized compounds, ethylene oxide/propylene oxide block copolymers and ammonium nitrate. Further active ingredients can be incorporated. The homogeneous phase is stabilized by ammonium nitrate. The use of the compositions as bioregulators is described.
摘要:
A substantially water-free formulation of crop protection agents, comprising essentially a) a cyclohexenone oxime ether of the formula I where R1=ethyl, propyl; R2=hydrogen or an equivalent of an agriculturally useful cation; R3=2-(thioethyl)propyl, tetrahydrothiopyran-3-yl, tetrahydrothiopyran-4-yl, tetrahydropyran-3-yl, tetrahydropyran-4-yl, 1-(methylthio)cyclopropyl, 5-(isopropyl)isoxazol-3-yl, 2,5-dimethylpyrazol-3-yl, 2,4,6-trimethylphenyl or 2,4,6-trimethyl-3-butyrylphenyl; R4, R5=H, CH3, CO—OCH3; Alk=CH2CH2, CH2CH(CH3), CH2CH═CH, CH2CH═C(Cl), CH2CH2CH═CH; R6=H, phenyl, halophenyl, dihalophenyl, phenoxy, halophenoxy, dihalophenoxy; b) N-phosphonamethylglycine, or an ester or salt thereof, DL-homoalanin-4-yl(methyl)phosphinic acid or its ammonium salt; c) from 20 to 80% by weight of an aprotic or weakly protic solvent in which the components a) and b) are suspended; d) if desired emulsifiers, surfactants, surface-active and/or activity-enhancing auxiliaries, is described.