Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UMLS:C0002736 (
amyotrophic lateral sclerosis
)
19,048
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Heterocyclic ring compounds such as pyrazine, pyrimidine, purine, quinoxaline, quinazoline and
phthalazine
can be rapidly decomposed in the molten state with mixtures of various ratios of concentrated sulphuric acid and lithium sulphate (molten
ALS
) flux containing catalysts such as cupric sulphate, elemental selenium powder, selenium dioxide, mercury(II) oxide (red) and mercurcic sulphate. The quantitative recovery of nitrogen in the above six compounds with the molten
ALS
flux decomposition systems can be obtained with the Kjeldahl method.
...
PMID:Rapid decomposition of heterocyclic ring compounds with molten acidic lithium sulphate flux containing catalysts and kjeldahl determination of nitrogen. 1896 55
