Abstract: 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.

Abstract: A fungicidal mixture, comprising (1) 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-[1,2,4]-triazole-3-thione (prothioconazole) of the formula I or its salts or adducts and at least one insecticide selected from the group consisting of (2) fipronil of the formula II (3) chlorpyrifos of the formula III (4) thiamethoxam of the formula IV in a synergistically effective amount is described.

Abstract: A fungicidal mixture, comprising (1) 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-[1,2,4]-triazole-3-thione(prothioconazole) of the formula I or its salts or adducts and at least one insecticide selected from the group consisting of (2) fipronil of the formula II (3) chlorpyrifos of the formula III (4) thiamethoxam of the formula IV in a synergistically effective amount is described.

Abstract: 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.

Abstract: The present invention relates to a composition for controlling plant-injurious organisms comprising: i. at least one active component A selected from among 1,3-dichloropropene, trichloronitromethane (chloropicrin), methyl isothiocyanate and substances which release methyl isothiocyanate, and ii. dimethyl disulfide as component B. The present invention therefore also relates to a method for controlling plant-injurious organisms, which comprises allowing the active components A jointly with dimethyl disulfide in such an amount that they bring about the destruction of plant-injurious organisms, their eggs or their larvae, on the plant-injurious organisms, their eggs, their larvae or their environment. The present invention furthermore relates to the use of the composition according to the invention for the disinfection of soils.

Abstract: A fungicidal mixture, comprising (1) 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxy-propyl]-2,4-dihydro-[1,2,4]-triazole-3-thione (prothioconazole) of the formula I or a salt or adduct thereof ?and at least one further triazole or a salt or adduct thereof, selected from the group consisting of (2) epoxiconazole of the formula II ?and (3) metconazole of the formula III ?and (4) propiconazole of the formula IV ?and (5) fluquinconazole of the formula V ?and (6) penconazole of the formula VI ?and (7) difenconazole of the formula VII ?and (8) hexaconazole of the formula VIII ?and (9) cyproconazole of the formula IX ?and (10) flusilazole of the formula X ?and (11) tetraconazole of the formula XI ?and (12) fenbuconazole of the formula XII ?and (13) myclobutanil of the formula XIII ?and (14) simeconazole of the formula XIV ?and (15) ipconazole of the formula XV ?and (16) triticonazole of the formula XVI in a synergistically effective amount is d

Abstract: The invention relates to a fungicidal mixture that comprises (1) 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-[1,2,4]-triazolo-3-thion (prothioconazole) or the salts or adducts thereof and at least one further fungicidal composition, selected from (2) boscalid or (3) carboxine or (4) metrafenone or (5) a compound of formula (V) or (6) a compound of formula (VI) or (7) quinoxyfen or (8) dithianon or (9) thiram or (10) mepiquat chlorides or (11) cyazofamid or (12) fenoxanil or (13) a compound of formula (XIII) or (14) thiophanate methyl or (15) carbendazim or (16) metalaxyl or (17) fludioxonil or (18) thiabendazole or (19) quintozene or (20) prochloraz or (21) anthraquinone in a synergistically effective amount.

Abstract: A fungicidal mixture, comprising (1) 2-[2-(1-chlorocyclopropyl)-3(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-[1,2,4 ]-triazole-3-thione(prothioconazole) of the formula I or its salts or adducts and at least one insecticide selected from the group consisting of (2) fipronil of the formula II (3) chlorpyrifos of the formula III (4) thiamethoxam of the formula IV in a synergistically effective amount is described.

Abstract: A fungicidal mixture comprising (1) 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxy-propyl]-2,4-dihydro-[1,2,4]-triazole-3-thione (prothioconazole) of the formula I or a salt or adduct thereof and at least one further fungicide or a salt or adduct thereof selected from the group consisting of (2) fenpropiomorph of the formula II and (3) tridemorph of the formula III ?n=10, 11, 12 (60-70%) or 13 and (4) fenpropidin of the formula IV in a synergistically effective amount is described.

Abstract: Disclosed is a fungicidal mixture containing (1) 2-[2-(1-chlorocyclo-propyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-[1,2,4]-triazole-3-thion of formula (I) or the salts or adducts thereof, and at least one additional fungicidal compound or the salts or adducts thereof, selected among (2) trifloxystrobin of formula (11), (Prothioconazole) (3) picoxystrobin of formula (f), (4) pyraclostrobin of formula (IV), (5) dimoxystrobin of formula (V), and (6) a strobilurin derivative of formula (VI), in a synergistically active quantity.

Abstract: The invention relates to a direct methanol fuel cell and to a method for controlling the methanol concentration without requiring the provision of additional methanol concentration sensors (47). Instead, the current-voltage characteristic curves of the fuel cell (40) are sampled using small variations of the system variables current I and methanol concentration M, and information used for controlling is obtained therefrom. In systems possessing an electrical buffer (49), a connected consumer is supplied without interruption despite the abandonment, as described by the invention, of the optimal operating point of the fuel cell.

Abstract: 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.

Abstract: The bushing has an electrical conductor (1) to which high voltage can be applied. One section of the electrical conductor (1) is surrounded by a varistor arrangement (9). The bushing also contains two electrical connections (4, 6), one (6) of which can be connected to high voltage and the other (4) can be connected to ground, a bushing insulator (5) provided between the electrical conductor (1) and the varistor arrangement (9), and a clamping apparatus (11) which applies a contact force to the electrical connections (4, 6) and to the varistor arrangement (9) located in between them like a sandwich. The clamping apparatus has an insulating part which applies the contact force to the two electrical connections. The bushing insulator is in the form of a molding and has a supporting element, provided with a guide surface, for a contact (1a) (which is connected to the electrical conductor (1)) in a plug connection to a cable or to an apparatus bushing of an electrical apparatus.

Abstract: The subject matter of the present invention is the optimization of a capacitive liquid level sensor which is suitable, in particular, for determining the location of a boundary layer 12 between water 10 and oil 11 in a separator tank. The known sensor principle is based on measuring the environmentally dependent capacitance between neighboring electrodes 13, 4; 4, 5; 5, 6 of a rod-shaped probe 1. According to the invention, the probe 1 is designed such that large ionic double-layer capacitors occur on the electrodes 4, 5, 6, 13 in the more conductive medium 10, and small capacitors occur between electrodes 4, 5, 6, 13 in the insulating medium 11. For this purpose, the electrode height h is selected to be large, the ratio of the electrode height h to the electrode spacing a is preferably selected to be in the range of 1<h/a<6 and, in particular, the measuring frequency f is selected to be in the dielectric cut-off frequencies of the media 10, 11.

Abstract: An apparatus for capacitively determining a position of a counter wheel (1) in a wheel counter mechanism has fixed electrodes (3, 3′) at a distance from the counter wheel (1). Extending over the circumference of the counter wheel (1) are a sequence of measurement electrodes (12, 12′, 12″), and electrically nonconductive sections (13, 13′) arranged between said measurement electrodes. This means that it is possible to detect either a high or a low capacitance value, that is to say a binary value of either 0 or 1, for each position of the counter wheel and for each fixed electrode. According to the number of fixed electrodes for each counter wheel, these binary values can be combined to form a binary representation of any desired number characterizing the current position of the counter wheel (1).

Abstract: The subject matter of the present invention is a method and a device for capacitive liquid level measurement which are particularly suitable for determining liquid level between adhesive media 10, 11 of different conductivity. The known sensor principle is based on the fact that the environmentally dependent capacitance is measured between neighboring electrodes 13, 4; 4, 5; 5, 6 of a rod-shaped probe 1. According to the invention, the probe 1 has electrodes 4, 5, 6, 13 with covers 7 of different thicknesses d.sub.i. The effective thickness d.sub.s /.epsilon..sub.s of an insulating pollutant film 14 can then be determined by capacitance measurements between at least two pairs of electrodes 4, 5, 6, 13. The influence of a conductive pollutant film 14 on the capacitance signal can be eliminated by selection of at least one suitable measuring frequency.