Improved microcombustion technique for nitrogen estimation in heterocyclic compounds

Saran, J.; Khanna, P. N.; Banerji, S.N.

doi:10.1007/bf01218342

Cited by 3 publications

(1 citation statement)

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“…A number of modifications and improvements to the Dumas method have been published. Saran, Khanna, and Banerji (270) proposed a new filling consisting of a layer of reduced copper between layers of cupric oxide in wire form followed by a hollow cylinder of platinum foil filled with 30% platinized asbestos finely cut and ignited. Lapteva, Novikov, and Bondarevskaya (174) developed an apparatus for the simultaneous determination of two samples in parallel combustion tubes with programmed heating.…”

Section: Nitrogenmentioning

confidence: 99%

Organic elemental analysis

S.¹,

Gutterson²

1974

Anal. Chem.

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This review follows the previous one (189) and covers the literature and information received by the authors from October 1971 to November 1973. As in the past, it surveys the developments in the determination of the elements in organic materials.Since the commercial CHN analyzers have been on the market for some ten years (186), time is come for an overall evaluation of these automated machines. At the International Symposium on Microtechniques held in University Park, Pa. in August 1973, several practicing microanalysts reported on the performance of the respective apparatus which they had used for long periods. The findings are favorable. At the same time, it is noted that the number of commercial instruments (187, 188) has diminished. Research activities on automation, however, have been vigorous, as evidenced by the papers on coulometric methods, use of ion-selective electrodes, and other elec-

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Section: Nitrogenmentioning

confidence: 99%