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Biological environmental specimen banking in Slovakia
Science of The Total Environment, 1993Biological environmental specimens, including samples of human tissues, were stored for 5-10 years after solubilizing by mineralization in boiling nitric acid. The sampling procedure, transport treatment and storing was standardized. Documentation identifying the sample and its origin were used.
T, Trnovec +3 more
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Biological specimen bank for smelter workers
Science of The Total Environment, 1993The biological specimen bank was initiated by the department of Environmental Medicine and the department of Medicine at the University of Umeå in 1975. The aims of the bank are to collect information on trace elements in human organs. Special attention is focused on the influence of occupational exposure. Tissue samples are taken from deceased workers
L, Gerhardsson +4 more
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Cryopreservation of biological specimens
Proceedings, annual meeting, Electron Microscopy Society of America, 1993Rapid cooling is the first, critical step in the preservation of biological specimens for examination using a wide variety of electron microscopic techniques. The choice of which cooling method to use depends on many factors, such as the restrictions of specimen geometry, the type of structural information desired and the microscopic techniques to be ...
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Computer-aided microspectrophotometry of biological specimens
Experimental Cell Research, 1971Abstract A scanning microspectrophotometer controlled by a small digital computer is used to produce data which is analysed using a larger, remote digital computer. Programs have been written for the smaller machine to permit automatic scanning of a large number of preselected fields.
H M, Shapiro +4 more
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Biological specimen banks in neonatal screening
Acta Paediatrica, 1999The Danish neonatal screening program analyses dried blood spot samples (DBSS) from close to 70 000 newborns annually from Denmark, Greenland and the Faroe Islands. Since 1982, all DBSS have been stored in a biological specimen bank at −20°C as a routine procedure after analysis.
B, Nørgaard-Pedersen, H, Simonsen
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Determination of Manganese in Biological Specimens
American Industrial Hygiene Association Journal, 1962Abstract Two methods of sample preparation and three colorimetric methods for the determination of manganese in biological specimens have been improved and evaluated. The diethylaniline method in which the manganese serves as a catalyst for color development proved to be far superior in sensitivity for urine samples.
N E, BOLTON, J D, CAVENDER, V T, STACK
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2019
Using the Stellwagen Lead, Cordell recovered samples of the bottom on the Bank. These specimens were sent to Washington, and are still preserved in the U. S. Museum of Natural History.
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Using the Stellwagen Lead, Cordell recovered samples of the bottom on the Bank. These specimens were sent to Washington, and are still preserved in the U. S. Museum of Natural History.
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1998
Biological specimens have been investigated with optical microscopes such as the differential interference contrast microscope and the confocal microscope. Although they provide a way to monitor the biological process in real time [1], their resolution is limited by the diffraction of the light.
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Biological specimens have been investigated with optical microscopes such as the differential interference contrast microscope and the confocal microscope. Although they provide a way to monitor the biological process in real time [1], their resolution is limited by the diffraction of the light.
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Visualization of biological specimens by cryoHVEM
Journal of Microscopy, 1986summaryThis article describes the operation and the characteristics of cryoHVEM imaging of biological specimens using a top‐entry cryostage. The procedure for inserting frozen specimens into the microscope column is also presented. Whole mounts were thus observed under optimal imaging conditions by combining: (i) fixation by fast freezing for structure
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Multiphoton microspectroscopy of biological specimens
SPIE Proceedings, 2000The non-linear nature of multi-photon fluorescence excitation restricts the fluorescing volume to the vicinity of the focal point. As a result, the technology has the capacity for micro- spectroscopy of biological specimen at high spatial resolution.
Bai-Ling Lin +9 more
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