Separation of Zirconium and Hafnium by Reversed Phase Partition Chromatography

Crawley, R.H.A.

doi:10.1038/197377b0

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Techniques and Apparatus1

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1964

1986

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Cited by 14 publications

(1 citation statement)

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“…For partition columns, reversed-phase systems are now generally preferred; stationary phases such as 2-octanone (490), tri-n-octvlphosphine oxide (248,250,878), bis(2-ethylhexyl)orthophosphoric acid (1224,1720), and tributyl phosphate (323,437,468,652,1050,1434) give excellent resolution. When tributyl phosphate is used as the mobile phase, the rare earth elements are eluted in the order of decreasing atomic number (284) In TLC (1399), the migration of cations on silica gel is determined by the ion exchange properties of the adsorbent and the coordination tendencies of the solvent, e.g.…”

Section: Techniques and Apparatusmentioning

confidence: 99%

Chromatography

Heftmanń¹

1964

Anal. Chem.

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Section: Techniques and Apparatusmentioning

confidence: 99%

Chromatography

Heftmanń¹

1964

Anal. Chem.

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Local Environment of Chronic Wounds Under Synthetic Dressings

Varghese¹

1986

Arch Dermatol

184

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Local wound environment under oxygen-permeable and oxygen-nonpermeable dressings in patients with chronic ulcers was investigated. The oxygen tensions under both these dressings were very low or zero. Wound fluid was more acidic under the nonpermeable hydrocolloid dressing than under the oxygen-permeable polyurethane dressing. Bacterial growth studied in vitro was retarded at the more acidic pH similar to that found under the hydrocolloid dressing. Viable and functioning neutrophils were found under both the polyurethane and hydrocolloid dressings, with a greater percentage of viable cells under the polyurethane film. Our data suggest that these synthetic dressings create hypoxic conditions in which wound healing occurs whether or not the dressing is permeable to oxygen. Furthermore the local wound environment can be modified by use of synthetic dressings.

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Neutronenaktivierungsanalyse einer standardisierten Al-Si-Legierung

Becker

Sorantin

1971

Z. Anal. Chem.

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Separation of Zirconium and Hafnium by Reversed Phase Partition Chromatography

Cited by 14 publications

References 9 publications

Chromatography

Chromatography

Local Environment of Chronic Wounds Under Synthetic Dressings

Neutronenaktivierungsanalyse einer standardisierten Al-Si-Legierung

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