A Novel High-Pressure NMR Cell Consisting of Double Tube Structure for the Convenient On-Line Measurements

Autor:	Junzo Yana, Norio Saito, Mitsuhiro Kanakubo, Tatsuya Umecky, Yamazaki Hiromi, Junko Yoshimura, Yutaka Ikushima
Rok vydání:	2002
Předmět:	chemistry.chemical_classification chemistry.chemical_compound chemistry Double tube Flow (psychology) Carbon dioxide Relaxation (NMR) Carbon tetrachloride Analytical chemistry General Chemistry Polymer Volumetric flow rate Line (formation)
Zdroj:	Chemistry Letters. 31:118-119
ISSN:	1348-0715 0366-7022
DOI:	10.1246/cl.2002.118
Popis:	We have newly developed a high-pressure polymer NMR cell, which has a versatile use for both batchwise and on-line operations. The high-pressure cell withstands temperatures and pressures, at least, up to 373 K and 35 MPa, respectively. It was demonstrated that the sample solutions of not only viscous carbon tetrachloride but also non-viscous subcritical carbon dioxide smoothly flow in and out at moderate flow rates by measuring the flow rate dependence of the longitudinal relaxation times.
Databáze:	OpenAIRE
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