Determination of radioactivity-labelled derivatives of [8-14C]-6-mercaptopurine in homogenates of L5178Y mouse lymphoma cells using high-pressure liquid cation-exchange chromatography

1976 ◽  
Vol 279 (2) ◽  
pp. 151-152 ◽  
Author(s):  
H. J. Breter ◽  
R. K. Zahn
Keyword(s):  
High Pressure ◽  
Cation Exchange ◽  
Exchange Chromatography ◽  
Cation Exchange Chromatography ◽  
Lymphoma Cells ◽  
Mouse Lymphoma Cells ◽  
Derivatives Of ◽  
Mouse Lymphoma

SYMPOSIUM ON URINARY CONSTITUENTS OF LOW MOLECULAR WEIGHT Session II

1968 ◽  
Vol 14 (5) ◽  
pp. 383-390 ◽  
Author(s):  
Charles D Guri ◽  
Leonard J Cole
Keyword(s):  
Molecular Weight ◽  
Cation Exchange ◽  
Exchange Chromatography ◽  
Low Molecular Weight ◽  
Colorimetric Determination ◽  
Cation Exchange Chromatography ◽  
X Irradiation ◽  
Radiation Induced ◽  
Derivatives Of

Abstract Urinary deoxycytidine and other pyrimidines have been studied in rats after wholebody irradiation. Utilizing combined column and paper chromatography and colorimetric determination of the isolated deoxycytidine, significant elevations in the excretion of this compound were observed during the first 24 hr. after irradiation. An increased concentration of deoxycytidine in the plasma was also observed within 4 hr. after X-irradiation. Utilizing both anion- and cation-exchange chromatography, X-irradiation has been shown to produce an increase in several other pyrimidines, including derivatives of the bases cytosine, thymine, and uracil. While the data were suggestive of a radiation-induced generalized pyrimidinuria, urinary deoxycytidine and thymidine demonstrated remarkable elevation and were predominantly responsible for this phenomenon.

The use of high-pressure liquid cation-exchange chromatography for determination of the 5-methylcytosine content of DNA

1976 ◽  
Vol 118 (2) ◽  
pp. 242-249 ◽  
Author(s):  
Hans-Joachim Breter ◽  
Gerhard Seibert ◽  
Rudolf K. Zahn
Keyword(s):  
High Pressure ◽  
Cation Exchange ◽  
Exchange Chromatography ◽  
Cation Exchange Chromatography

The Determination of the DNA Base Composition in 19 Species of Adriatic Sponges with High-Pressure Liquid Cation-Exchange Chromatography

1976 ◽  
Vol 31 (9-10) ◽  
pp. 554-557 ◽  
Author(s):  
Hans-Joachim Breter ◽  
Ferdinand Hundt ◽  
Rudolf K. Zahn
Keyword(s):  
High Pressure ◽  
Cation Exchange ◽  
Base Composition ◽  
Exchange Chromatography ◽  
Cation Exchange Chromatography ◽  
Dna Base Composition ◽  
Dna Base ◽  
Semiquantitative Method ◽  
Adenine Thymine

Abstract The (adenine + thymine)/(guanine + cytosine) base ratios of 19 species of adriatic sponges have been determined by high-pressure liquid cation-exchange chromatography. The base ratios vary from 1.49 (Mycale massa) to 0.63 (Hippospongia communis) according to an (A+T) content of 59.7 and 38.6 mol%, respectively. The DNAs of sponges of the order Keratosa showed marked differences in their (A +T) contents (39.5 to 58.8 mol%) whereas those of Tetractinellida and Halichondrina were nearly identical (39.3 to 40.8 and 49.5 to 49.8 mol%, respectively). The 5-methylcytosine (5MC) content was determined in 8 sponge DNAs by a semiquantitative method. The values differed from 0.8 to 2.2 mol% of 5MC.

Inductively coupled plasma mass spectrometry coupled to cation exchange chromatography for the determination of trace nickel in alkaline electrolyte

2020 ◽  
Vol 35 (7) ◽  
pp. 1295-1299
Author(s):  
Lukas Miner ◽  
Diane Beauchemin
Keyword(s):  
Mass Spectrometry ◽  
Cation Exchange ◽  
Inductively Coupled Plasma ◽  
Exchange Chromatography ◽  
Alkaline Solutions ◽  
Alkaline Electrolyte ◽  
Cation Exchange Chromatography ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry

Cone corrosion by alkaline solutions with flow injection is prevented using cation-exchange chromatography coupled to inductively coupled plasma mass spectrometry.

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