Zobrazeno 1 - 10
of 45
pro vyhledávání: '"H. Shanfield"'
Publikováno v:
Environmental Science & Technology. 27:1139-1145
A new technique for water purification has been developed to remove organic contaminants in an aqueous solution using silicone polymers in the form of hollow fiber membranes. The method is simple to use and has a low setup cost, high capacity, and ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62f8faac264fad19b128b5af0cba936e
https://doi.org/10.1021/es00043a013
https://doi.org/10.1021/es00043a013
Autor:
Howard T. Mayfield, H. Shanfield, P. Juarez, Albert Zlatkis, Guenther Holzer, Hartmut M. Liebich, Wolfgang Bertsch
Publikováno v:
Journal of Chromatography A. 142:755-764
A study was undertaken to develop practical techniques for measurement of hydrocarbons and oxygenated volatiles in rural areas. A limited number of rural and urban samples were taken to demonstrate the general applicability of the method. Sampling lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::103e41631474be4f934fa97c6721f71e
https://doi.org/10.1016/s0021-9673(01)92083-7
https://doi.org/10.1016/s0021-9673(01)92083-7
Publikováno v:
Journal of Chromatography A. 239:259-264
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b1ff4cde23f5fe00c32bb248523e3b3
https://doi.org/10.1016/s0021-9673(00)81986-x
https://doi.org/10.1016/s0021-9673(00)81986-x
Publikováno v:
Journal of High Resolution Chromatography. 6:471-479
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37c84d6478d418c9c9a39a7b8df87d14
https://doi.org/10.1002/jhrc.1240060903
https://doi.org/10.1002/jhrc.1240060903
Publikováno v:
Analytical Chemistry. 54:2406-2409
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f45bd042bf1f26cd1dc506814edbba5d
https://doi.org/10.1021/ac00251a003
https://doi.org/10.1021/ac00251a003
Publikováno v:
Chromatographia. 18:11-14
A coating of silicone SE-54 on Chromosorb W has been converted to an analytically stable, immobilized stationary phase layer by cross-linking with an organic peroxide. Up to 10% by weight has been applied in this manner. Excellent high temperature qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f92c177c49ccac914edfed85dc1cf232
https://doi.org/10.1007/bf02279455
https://doi.org/10.1007/bf02279455
Publikováno v:
Journal of Chromatography A. 142:387-397
The energetic species produced by a high-voltage discharge in low-pressure nitrogen, argon or helium can activate organic compounds spotted on thin-layer silica gel chromatoplates. These can be induced to fluoresce by subsequent exposure to volatile
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9d2fe0975b750b355ffcc0cf51145f
https://doi.org/10.1016/s0021-9673(01)92052-7
https://doi.org/10.1016/s0021-9673(01)92052-7
Publikováno v:
Journal of Chromatography A. 126:457-462
It has been found that a simple gaseous electrical discharge can induce visible fluorescence in a variety of organic compounds separated on silica gel thin-layer chromatoplates. Exposure times ranging from 5 sec to 5 min are ample to detect submicrog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a28a0049df4485e32b77a98067e75901
https://doi.org/10.1016/s0021-9673(01)84092-9
https://doi.org/10.1016/s0021-9673(01)84092-9
Publikováno v:
Journal of High Resolution Chromatography. 7:370-374
Large sample volume on-column injection (up to 250 μL) of n-pentane solutions of halogenated hydrocarbons has been employed for the direct measurement of both low-boiling and high-boiling compounds in what is essentially a single run. Two-bonded pha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4960f2d8de74ec90c0ee4511ae252e39
https://doi.org/10.1002/jhrc.1240070706
https://doi.org/10.1002/jhrc.1240070706
Publikováno v:
Chromatographia. 17:411-417
An experimental method for the analysis of trace volatile organic compounds has been developed and standarized. This new technique involves headspace sampling, heart cutting, collection and concentration of the voltiles on a porous polymer (Tenax-GC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14fed9770fa74173595d6bce9cb1ffe5
https://doi.org/10.1007/bf02262920
https://doi.org/10.1007/bf02262920