1997
DOI: 10.1002/(sici)1520-667x(1997)9:2<97::aid-mcs6>3.0.co;2-0
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Factors affecting the preparation of packed capillary columns in supercritical carbon dioxide media

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Cited by 16 publications
(9 citation statements)
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“…As can be seen from the repeated results, markedly lower column efficiencies were obtained. These column efficiencies approach the typical values measured in [14] where the problem of a rapidly formed bed was described. Figure 3 demonstrates the efficiency of a prepared column in the SFC separation of silicone oil Lukoil.…”
Section: Resultssupporting
confidence: 78%
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“…As can be seen from the repeated results, markedly lower column efficiencies were obtained. These column efficiencies approach the typical values measured in [14] where the problem of a rapidly formed bed was described. Figure 3 demonstrates the efficiency of a prepared column in the SFC separation of silicone oil Lukoil.…”
Section: Resultssupporting
confidence: 78%
“…Koivisto et al [14] used factorial analysis to elucidate the influence of four parameters (filling pressure, flow rate of CO 2 , pressure ramp, and ultrasound intensity). With the exception of sonic power, the other parameters had a significant effect on the column efficiency.…”
Section: Introductionmentioning
confidence: 99%
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“…Como alternativa, as colunas empacotadas e monolíticas que utilizam a mesma tecnologia de preparação que as de HPLC têm ganhado muita aceitação na área da cLC. Diferentes técnicas de empacotamento vêm sendo relatadas, utilizando diversos meios de se transferir a fase estacionária do reservatório externo para dentro das colunas [63] , os quais incluem a utilização de gases [64][65][66] , dióxido de carbono supercrítico [67][68][69][70][71] ou líquidos [11,72] .…”
Section: Colunasunclassified
“…Dentre as técnicas desenvolvidas para o preparo de colunas, a mais utilizada atualmente, tanto no preparo de colunas convencionais como capilares, consiste no empacotamento com partículas em suspensão [23][24][25][26] . Contudo outras técnicas de _____________________________________________________________________________________________________________________________ empacotamento, incluindo o empacotamento a seco 27 e o empacotamento com fluido supercrítico [28][29][30][31] , têm sido estudadas no intuito de obter colunas miniaturizadas com maior eficiência.…”
Section: Colunas Empacotadasunclassified