Zeiss, Carl

Fig. 6. A typical correlation function obtained for IFABP in 20 mM phosphate buffer at pH 7.3 at room temperature. The experiment was performed using a ConfoCor 2 LSM combination instrument (Carl Zeiss-Evotec, Jena, Germany) and the correlation function data (G(t)) were fitted to the form G(r) = G(0)/(1 + x/rD), where Td is the characteristic diffusion time. An additional exponential component improves the fit. 

Materials required Carl Zeiss Laser Scanning Confocal Microscope LSM 510 NLO Carl Zeiss, object glasses, cover glasses, plant allelochemicals and pigments, azulene, quercetin and rutin, rutacridone, chlorophyll, sum of carotenoids... 

Transmission electron microscopy (T.E.M.). electron micrographs of the silica particles were produced using an Hitachi HU11B apparatus. Particle size distributions were obtained from these using a Carl Zeiss particle size analyser. 

The laser microprobe employs a pulsed laser to vaporize minute amounts of the sample. The vapor temperature, however, in the case of low-power lasers is not sufficient to provide adequate excitation for spectrochemical analysis. The sample vapor is therefore further excited as it passes between two auxiliary electrodes above the sample. The optimum excitation conditions have been examined by Quillfeldt using the commercial laser-microspectral analyzer LMA 1 (Carl Zeiss, Jena). Spectrochemical determinations of Fe,... 

Carl Zeiss, Inc. also describes a spectrofluorometer system for process monitoring," but it does not currently appear as a standard marketed product on their web site. HORIBA Jobin Yvon also markets a fluorescent process analyzer, but it is a laser-induced time-domain based measurement system tailored for uranium or equivalent analysis." Finally, while numerous miniature spectrofluorometers are also available (Carl Zeiss, StellarNet Inc., Ocean Optics and Avantes), they are not packaged and configured for process applications. Although there is an established need and continued growing interest in realtime process spectrofluorometry, relative to conventional process spectroscopic instruments such as NIR, UV-vis and Raman, commercial process spectrofluorometers are currently available on a very limited basis. 

Carl Zeiss Inc. [Online], On-line Eluorescence Measurements in Biotechnology using a Eiber Optical Probe and a Light Sensitive CCD Spectrometer, available http //www.zeiss.de/cl2567bb00549f37/Contents-Erame/ b98a7597898099dfcl25727d0047c6bc accessed 20 November 2009. 

The toxicity tests with Paramecium caudatum were carried out in a special plate and examined under a Laboval microscope (Carl Zeiss, Jena). The test reaction was the death of the test organisms when exposed to 0.3 mL of test solution for 1 hour, using 10 individuals of Paramecium. Analysis was conducted five times simultaneously. 

The experiments have been performed on a setup that used the ps-OPO-based CARS system described above and a femtosecond Tiisapphire laser in conjunction with a commercial laser scanning microscope (Carl Zeiss, model LSM-510). The peripheral nerve samples were gained from C57/B6 wild-type mice. After removing the skin from the lower extremities from freshly sacrificed mice, the saphenous nerve is exposed as it runs very conveniently for excision along the saphenous vein, without too much additional fatty tissue and a favorable tissue thickness of less than 20 m. A 500- m long piece is excised and freed from additional fatty tissue as well as the collagenous nerve sheath. The myelinated nerve tissue is fixed for 3-5 hr in 4% PEA or 10% formalin and mounted on 100-pm thick coverslips that are treated with 3-aminopropyltriethoxysilane or a chromium potassium sulfate solution. After... 

The morphology of silver nanopartilces on the cotton surface and paint samples was observed by field emission scanning electron microscopy (FE-SEM JSM-6700F, JEOL, Japan). The size and shape of the nanoparticles in solution were determined with transmission electron microscopy (TEM) (LEO-912-OMEGA, Carl Zeiss, Germany). 

Spectrometer type and manufacturer UR-10, VEB Carl Zeiss, Jena... 

Carl Zeiss Jena Tatzendpromenade la D-07740 Jena (Germany)... 

FIG. 1.12 Electron micrograph of two different types of particles that represent extreme variations from spherical particles (a) tobacco mosaic virus particles (Photograph courtesy of Carl Zeiss, Inc., New York) and (b) clay particles (sodium kaolinite) of mean diameter 0.2 fim (by matching circular fields). In both (a) and (b), contrast has been enhanced by shadow casting (see Section 1.6a.2a and Figure 1.21). (Adapted from M. D. Luh and R. A. Bader, J. Colloid Interface Sci. 33, 539(1970). 

Experimental Technique. The IR spectra of dehydrated samples were recorded by UR 10 spectrometer (VEB Carl Zeiss Jena). To obtain spectra for dehydrated zeolites, samples were activated for 10 hours in air at 570°C, cooled to room temperature in the presence of P4O10, and ground with Nujol. The accuracy of the band maximum determination of the D6-ring band was 1.5 cm-1. IR characterization of the zeolites after CO adsorption was done in a cell with NaCl windows as described by Dunken and coworkers (9). The samples were heated at 550° C for 3 hours under vacuum. After cooling under vacuum to room temperature, CO was adsorbed (pco = 450 torr), and the spectra were recorded. 

DTA studies were done with a DTA apparatus (Netzsch-Geratebau, GmbH, Selb) in an argon atmosphere with heating at 10°/min. ESR signals were taken in the X-band with an ER 9 spectrometer (VEB Carl Zeiss Jena) and in the Q-band with a 35-GHz ESR-XQ spectrometer (Akademie der Wissenschaften der DDR, Berlin). 

Chemical Process Technology Carl-Zeiss-Strasse 18-20 55129 Mainz Germany... 

Light microscopy of immunoperoxidase-stained sections was done on Axiovert S100 microscope (Carl Zeiss, Tokyo, Japan) and digitized by a 3-CCD (charge-coupled device) digital camera (Fujifilm, Tokyo, Japan) on a personal computer (Fujitsu, Tokyo, Japan). Only cells in a single focal plane were counted on a computer screen to avoid oversampling. 

The measurements were performed with a FLAPHO 4 flame photometer (Carl Zeiss Jena) using a propane-air flame. The influence of sulfate, chloride, and phosphate ions and the mutual influence of alkali metal ions on the determination of potassium and sodium ions were investigated. Anions were selected on the basis of previous experiments to determine their interference properties. The multifactorial plan was realized in the concentration levels represented in Tab. 10-4. 

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