The microdetermination of carbon and hydrogen in organometallic compounds. I

Newman, D. G.; Tomlinson, C.

doi:10.1007/bf01224566

Cited by 6 publications

(2 citation statements)

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“…Magnesium perchlorate was used to absorb water and manganese dioxide for nitrogen oxides. Potassium persulphate was found not to be necessary to give maximum release of carbon (Newman and Tomlinson, 1964). A balance weighing to 0.01 mg was used.…”

Section: Methodsmentioning

confidence: 99%

A method for estimating the biomass of bacteria in aquatic sediments and its application to trophic studies

Moriarty

1975

Oecologia

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A method is described for estimating the biomass of bacteria in aquatic sediments by an enzymic measurement of D-lactic acid derived from hydrolysis of muramic acid. A correlation is shown between muramic acid and biomass. The Gram-negative rod bacteria contain about 20 μg muramic acid/mg carbon whereas the Gram-negative or Gramvariable pleomorphic and Gram-positive bacteria contain about 100 μg muramic acid/mg carbon. Thus to measure biomass, the relative proportions of these bacteria in the population must be measured. The method is limited at present to sediments in which the biomass of blue-green algae is insignificant compared to bacteria. It is particularly suited to measuring the biomass of bacteria in sediments ingested by animals. This is illustrated by analysis of the gut contents of two deposit-feeders, a mullet (Mugil cephalus) and a prawn (Metapenaeus bennettae), in which it is shown that bacteria are an important component of their diet.

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Section: Methodsmentioning

confidence: 99%

A method for estimating the biomass of bacteria in aquatic sediments and its application to trophic studies

Moriarty

1975

Oecologia

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“…For heterocyclic compounds containing nitrogen and sulfur, Saran, Khanna, and Banerji (272) included an additional zone in the combustion tube of silver gauze which extends the life of the packing and improves accuracy of the determination of carbon. Newman and Tomlinson (226) compared the analysis of alkali and alkaline earth metal salts for carbon and hydrogen with and without the addition of tungstic oxide to determine its influence. Francis and Minnick (96) described a filling for the Ingram vertical combustion apparatus particularly suitable for compounds containing phosphorus and fluorine.…”

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confidence: 99%