XXXVII.—Some sulphur compounds of barium

Barium and Barium Compounds

The International Programme on Chemical Safety (IPCS), established in 1980, is a joint venture of the United Nations Environment Programme (UNEP), the International Labour Organization (ILO), and the World Health Organization (WHO). The overall objectives of the IPCS are to establish the scientific basis for assessment of the risk to human health and the environment from exposure to chemicals, ...

Barium and Barium Compounds

Biofiltration of reduced sulphur compounds and community analysis of sulphur-oxidizing bacteria.

The present work aims to use a two-stage biotrickling filters for simultaneous treatment of hydrogen sulphide (H(2)S), methyl mercaptan (MM), dimethyl sulphide (DMS) and dimethyl disulphide (DMDS). The first biofilter was inoculated with Acidithiobacillus thiooxidans (BAT) and the second one with Thiobacillus thioparus (BTT). For separate feeds of reduced sulphur compounds (RSC), the eliminatio...

Volatile sulphur compounds composition of monovarietal white wines

The sulphur compounds composition (Alvarinho, Loureiro, Trajadura, Pedernã vintages. Results show that wines could In general, Loureiro, Trajadura and Ped compounds; however, Loureiro wines w whereas Trajadura wines possessed a thio)-1-butanol. Alvarinho and Avesso w 1-propanol, 3-(ethylthio)-1-propanol an tetrahydrothiophen-3-one, cisand tran wines. Azal Branco wines were low in 3contents in S...

Volatile sulphur compounds in morning breath of human volunteers.

OBJECTIVE morning breath contains elevated concentrations of volatile sulphur components (VSCs). Therefore, morning breath is recognised as a surrogate target for interventions on breath quality. Nevertheless, factors influencing morning breath are poorly understood. Our aim was to evaluate concentrations of VSC at the time of awakening. METHODS a procedure was developed to collect breath sam...