A direct method for the determination of inorganic phosphate, bromide, nitrate and sulphate in 100 microliter serum is described. After a 10-fold dilution, the sample is directly injected into an ion chromatograph without further pretreatment. The method described is highly accurate, and reproducible over longer periods. The serum concentrations of the four above-mentioned anions have been determined in 20 male and 20 female normal persons and found to be in agreement with the results of earlier studies.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0009-8981(83)90233-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Carbene-Functionalized Bulky-Cyclopentadiene Rings.
Chemistry
January 2025
Indian Institute of Technology Madras, Department of Chemistry, Chennai, Chennai, INDIA.
A series of significantly bulky mono- and di-substituted cyclic alkyl-amino carbene (cAAC)- functionalized cyclopentadiene ring (Cp) compounds were synthesized. The functionalization of the Cp ring with cAAC ligands makes them significantly bulkier, while retaining their ligation properties. These compounds display interesting fluorescence properties.
View Article and Find Full Text PDFAn In Vivo Biostability Evaluation of ALD and Parylene-ALD Multilayers as Micro-Packaging Solutions for Small Single-Chip Implants.
Small
January 2025
Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Delft, 2628 CN, The Netherlands.
Miniaturization of next-generation active neural implants requires novel micro-packaging solutions that can maintain their long-term coating performance in the body. This work presents two thin-film coatings and evaluates their biostability and in vivo performance over a 7-month animal study. To evaluate the coatings on representative surfaces, two silicon microchips with different surface microtopography are used.
View Article and Find Full Text PDF[2Fe-2S] model compounds.
Chem Commun (Camb)
January 2025
Department of Chemistry, National Central University, Taoyuan 32001, Taiwan.
This feature article reviews the synthesis, structural comparison, and physical properties of [2Fe-2S] model compounds, which serve as vital tools for understanding the structure and function of Fe-S clusters in biological systems. We explore various synthetic methods for constructing [2Fe-2S] cores, offering insights into their biomimetic relevance. A comprehensive analysis and comparison of Mössbauer spectroscopy data between model compounds and natural protein systems are provided, highlighting the structural and electronic parallels.
View Article and Find Full Text PDFFabricating Lattice-Confined Pt Single Atoms With High Electron-Deficient State for Alkali Hydrogen Evolution Under Industrial-Current Density.
Adv Mater
January 2025
State Key Laboratory of Organic-Inorganic Composites and College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
The confining effect is essential to regulate the activity and stability of single-atom catalysts (SACs), but the universal fabrication of confined SACs is still a great challenge. Here, various lattice-confined Pt SACs supported by different carriers are constructed by a universal co-reduction approach. Notably, Pt single atoms confined in the lattice of Ni(OH) (Pt/Ni(OH)) with a high electron-deficient state exhibit excellent activity for basic hydrogen evolution reaction (HER).
View Article and Find Full Text PDFStructural Insights into Broad-Range Polyphosphate Kinase 2‑II Enzymes Applicable for Pyrimidine Nucleoside Diphosphate Synthesis.
Chembiochem
January 2025
University of Freiburg: Albert-Ludwigs-Universitat Freiburg, Institute of Pharmaceutical Sciences, Albertstr. 25, 79104, Freiburg, GERMANY.
Polyphosphate kinases (PPK) play crucial roles in various biological processes, including energy storage and stress responses, through their interaction with inorganic polyphosphate (polyP) and the intracellular nucleotide pool. Members of the PPK family 2 (PPK2s) catalyse polyP‑consuming phosphorylation of nucleotides. In this study, we characterised two PPK2 enzymes from Bacillus cereus (BcPPK2) and Lysinibacillus fusiformis (LfPPK2) to investigate their substrate specificity and potential for selective nucleotide synthesis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!