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Chemical element profiles by instrumental neutron activation analysis : in, part 1, two species of wheat bunt spores, Tilletia caries (DC) Tul. and Tilletia controversa Kühn; part 2, representative sediment and basalt samples taken from a DSDP 678 m core, site 525A, Leg 74, Walvis Ridge

Creator:: Liu, Yun-gang
Abstract:: Part 1 The concentration of seventeen elements in two species of fungus which cause wheat bunt disease, Tilletia caries (DC.)Tul. (TS) and Tilletia controversa Kiihn (DS), were determined by instrumental neutron activation analysis in 37 TS spore samples, and 31 DS spore samples. Aluminum was chosen as a soil contamination...
Resource Type:: Masters Thesis
Full Text:: Downcore Profile of Al 61 4. The Downcore Profile of Fe 62 5. The Downcore Profile of La 63 6. The

Synthesis and oligomerization of y,4-Diamino-2-oxo-1(2H)-pyrimidinepentanoic acid

Creator:: Nelson, Jeffrey Stephen
Abstract:: Described herein is the synthesis of an uncharged stereoregular oligonucleotide analog consisting of cytosine bases linked at specific intervals to a polyamide backbone derived from (L)-glutamic acid. Preparation of this analog entailed borane reduction of (L)- pyroglutamic acid to give optically pure lactam alcohol 9. Tosylation and alkylation with cytosine...
Resource Type:: Masters Thesis
Full Text:: Positive (MH+) 1305.7147 1305.7005 4 3 Positive (M11-1-) 1440.7719 1440.7720 4 5 Negative (M-H

Biosynthesis of acivicin and 4-hydroxyacivicin

Creator:: Ju, Shyh-chen
Resource Type:: Dissertation
Full Text:: (Hz) H 2 4.0 1H d 3.2 H 3 5.2 1H m H - 4 3.4 2H m Table 2. 100.6 MHz 13C-NMR Data of Acivicin

Selective detection for gas chromatography by ultraviolet spectrometry

Creator:: Van Engelen, Debra L.
Abstract:: Spectrometric detection systems for gas chromatography (GC) based on gas phase ultraviolet absorbance and fluorescence measurements have been developed and evaluated in this research. Polynuclear aromatic compounds (PNAs) are selectively detected by these systems. Limits of detection for PNAs range from 4 ng to 90 ng for absorbance determinations, and...
Resource Type:: Dissertation
Full Text:: Spectrometry Abstract approved: Redacted for Privacy Edward H. Piepmeier Spectrometric detection systems for

Studies on the biosynthesis of the streptolidine moiety of streptothricin F

Creator:: Wityak, John
Abstract:: The loss of all deuterium labels from previous feedings of [2-²H]-, [3,3-²H₂]-, and [2,3,3-²H₃]arginines had indicated the possible intermediacy of β-hydroxy- and β-ketoarginine (30 and 31, respectively) in the biosynthesis of the streptolidine portion of streptothricin F (la). In order to confirm or refute this evidence, D,L-[2,3,3,5,5-²H₅]- arginine (32) was...
Resource Type:: Dissertation
Full Text:: 1 167.29 s H-3 4.12 1H dd 13.6, < 1 2 51.80 d H-4 4.76 1 H bs 3 58.34 d H-5-pro-S 3.85 1 H dd 14.6

Studies on advanced intermediates in the biosynthesis of streptonigrin

Creator:: Erickson, W. Randal
Abstract:: Early studies on the biosynthesis of the quinoline quinone portion of streptonigrin, 1, had suggested the intermediacy of novel aromatic amino acids. In order to test this hypothesis, a series of compounds was synthesized and tested for potential incorporation. [4-¹⁵N] 4-Aminoanthranilic acid, 4 5 a , [4-² H] 7-aminoquinaldinic acid,...
Resource Type:: Dissertation
Full Text:: for potential incorporation. [4-15N] 4-Aminoanthranilic acid, 4 5 a , [4-2 H] 7-aminoquinaldinic acid

Synthesis and oxidation of cysteine- and penicillamine- containing Fe(III) and Co(III) complexes. Analogs for the active metal sites of the cysteine and cysteamine dioxygenases

Creator:: Miller, Krys J.
Abstract:: The first part of this thesis describes a study of the characteristics of oxidation of a 1:2 iron(III):thiolate system in methanolic solution and in water. This system was investigated as a potential analog for the cysteine- and cysteamine-dioxygenase catalyzed 0₂-oxidation of cysteine and cysteamine, respectively, to the corresponding sulfinic acids....
Resource Type:: Dissertation
Full Text:: readouts of external reference 23 standard and unknown product solution. 4 1 H nmr spectra fgr [Co

[Lambda hyperon]-((R)-cysteinesulfenamido-N,S) bis (ethylenediamine) cobalt(III) complex : Characterization of the complex and kinetics and mechanism of formation and base-catalyzed decomposition

Creator:: Sanguanruang, Oravan
Resource Type:: Dissertation
Full Text:: - ( sulfite S02- + 0=CCH 4 oxidase 3 I 3 CO 2 H pyruvic acid 5 It is perhaps of interest to compare

Fundamental studies of a gas-jet enhanced sputtering system and its applications

Creator:: Kim, Hyo-jin
Abstract:: The use of gas jets in a sputtering cell makes this direct sampling method practical for atomic absorption and mass spectrometry determinations. With a commercial six-jet sputtering source, the Atomsource (Analyte Corp., Grants Pass, Oregon), that directly atomizes solid samples for conventional atomic absorption spectrophotometers, the sample loss rate for...
Resource Type:: Dissertation
Full Text:: Sputtering System and its Applications Abstract approved: Redacted for Privacy Edward H. Piepmeier The

Synthesis and oxidation of metal-thiolate compounds which mimic the active site function of thiolate dioxygenase enzymes

Creator:: Schussel, Leonard J.
Abstract:: Part I describes the synthesis of bis(fac-S)((tris)2-aminoethanethiolatoiron( III))iron(III) chloride. The compound was first discovered during an attempt to prepare a ternary complex of iron, thiolate and pi-acid ligand. The compound is a reasonably air-stable iron(III)-thiolate that contains a linear tri-iron cluster with each iron bridged to the adjacent iron by...
Resource Type:: Dissertation
Full Text:: Model H-16 semimicro balance was used to measure the weight change. 27 Hg[Co(NCS)4] was used as a

ScholarsArchive@OSU

Chemical element profiles by instrumental neutron activation analysis : in, part 1, two species of wheat bunt spores, Tilletia caries (DC) Tul. and Tilletia controversa Kühn; part 2, representative sediment and basalt samples taken from a DSDP 678 m core, site 525A, Leg 74, Walvis Ridge

Synthesis and oligomerization of y,4-Diamino-2-oxo-1(2H)-pyrimidinepentanoic acid

Biosynthesis of acivicin and 4-hydroxyacivicin

Selective detection for gas chromatography by ultraviolet spectrometry

Studies on the biosynthesis of the streptolidine moiety of streptothricin F

Studies on advanced intermediates in the biosynthesis of streptonigrin

Synthesis and oxidation of cysteine- and penicillamine- containing Fe(III) and Co(III) complexes. Analogs for the active metal sites of the cysteine and cysteamine dioxygenases

[Lambda hyperon]-((R)-cysteinesulfenamido-N,S) bis (ethylenediamine) cobalt(III) complex : Characterization of the complex and kinetics and mechanism of formation and base-catalyzed decomposition

Fundamental studies of a gas-jet enhanced sputtering system and its applications

Synthesis and oxidation of metal-thiolate compounds which mimic the active site function of thiolate dioxygenase enzymes

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