APPLICATIONS OF GAS CHROMATOGRAPHY TO THE ANALYSES OF ORGANICS, WATER, AND ADSORBED GASES IN THE LUNAR CRUST
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Mass spectrometer techniques for analyzing dilute constituents of mitochondrial suspension
Electronic circuit is used in a paper chromatograph instrument that has excellent sensitivity and furnishes a printed record of each test. The circuit measures and records changes in conductivity in a strip of chromatographic paper as different solutions are placed on it.
Trace amounts of hydrazines in aqueous solutions can be determined by using polythyleneimine /PEI/ in conjunction with the gas chromatographic column. The PEI specifically retains water without altering the separability or elution order of the hydrazine and associated constituents.
Operating parameters and separation of nucleotides on pellicular ion exchangers investigated by liquid chromatographic system
Photoelectric peak generator for repeated reproduction of gas chromatogram peaks while data recording and integration variables are systematically studied
Gas chromatographic resolution of racemic aspartic acid, tryptophan, hydroxy and sulfhydryl amino acids
Gas chromatographic resolution of racemic carbohydrate diastereomers by method used for amino acids
Escherichia coli detection and differentiation from other bacteria by direct gas chromatographic analysis of culture media
Dispersion in gel permeation chromatograph, noting contributions of injection and detection systems to peak broadening and retention time
Gas chromatograph-mass spectrometer combination for in situ analysis of lunar organic matter, describing instrument design and operation
Free stream dispersion without permeation using nonporous glass beads and solutes, examining flow rate, particle size distribution, solute diffusivity, etc
Developing gas-liquid chromatographic method for quantitative analysis of amino acids in blood plasma and urine
Gas-liquid chromatographic separation applied in derivatization chemistry of protein amino acids as N-trimethylsilyl /TMS/ esters
Butyl esters separation from protein amino acids, using acid washed Chromosorb W of various mesh sizes
Retention times and gas chromatographic conditions for resolution of galactonic and gluconic acid derivatives
Phenylalkylcarbinol steric purity determination from asymmetric secondary alcohol derivatives separation by gas chromatographic resolution
Fabrication of a miniature gas chromatograph column using integrated circuit technology was studied and found to be feasible. A bonding problem of forming a strong, gas tight seal between two wafers of silicon has prevented the completion of the column design. Continuing research using tin or a chromium-gold bond promises to overcome the problems of using the proposed gold-eutectic bond. Specifications for the miniature gas chromatograph column are: a spiral capillary column of semi-circular cross section, 30 micron radius, and a total length of 6.9 meters etched into a silicon structure 50 mm in diameter and 0.625 mm thick.