Investigation of the molecular extraction process in single subpicoliter droplets using a near-infrared laser raman trapping system

Katsuhiro Ajito; Masao Morita; Keiichi Torimitsu

doi:10.1021/ac0002994

Investigation of the molecular extraction process in single subpicoliter droplets using a near-infrared laser raman trapping system

Katsuhiro Ajito, Masao Morita, Keiichi Torimitsu

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

The near-infrared (NIR) laser Raman trapping system was applied to study liquid-liquid extraction in a single droplet in a subpicoliter range. The system trapped a single subpicoliter toluene droplet in water using the NIR laser beam and provided time-dependent optical images of the droplet during liquid-liquid extraction. The size of the trapped droplet gradually increased after p-nonylphenol solution was added in water. The Raman spectra of the droplet prove that the increase of the droplet size was caused by the absorption of p-nonylphenol from the water. The distribution coefficient of p-nonylphenol in the subpicoliter droplet was much higher than that in bulk solution.

Original language	English
Pages (from-to)	4721-4725
Number of pages	5
Journal	Analytical Chemistry
Volume	72
Issue number	19
DOIs	https://doi.org/10.1021/ac0002994
Publication status	Published - 2000 Oct 1
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry

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10.1021/ac0002994

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title = "Investigation of the molecular extraction process in single subpicoliter droplets using a near-infrared laser raman trapping system",

abstract = "The near-infrared (NIR) laser Raman trapping system was applied to study liquid-liquid extraction in a single droplet in a subpicoliter range. The system trapped a single subpicoliter toluene droplet in water using the NIR laser beam and provided time-dependent optical images of the droplet during liquid-liquid extraction. The size of the trapped droplet gradually increased after p-nonylphenol solution was added in water. The Raman spectra of the droplet prove that the increase of the droplet size was caused by the absorption of p-nonylphenol from the water. The distribution coefficient of p-nonylphenol in the subpicoliter droplet was much higher than that in bulk solution.",

author = "Katsuhiro Ajito and Masao Morita and Keiichi Torimitsu",

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AU - Morita, Masao

AU - Torimitsu, Keiichi

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Y1 - 2000/10/1

N2 - The near-infrared (NIR) laser Raman trapping system was applied to study liquid-liquid extraction in a single droplet in a subpicoliter range. The system trapped a single subpicoliter toluene droplet in water using the NIR laser beam and provided time-dependent optical images of the droplet during liquid-liquid extraction. The size of the trapped droplet gradually increased after p-nonylphenol solution was added in water. The Raman spectra of the droplet prove that the increase of the droplet size was caused by the absorption of p-nonylphenol from the water. The distribution coefficient of p-nonylphenol in the subpicoliter droplet was much higher than that in bulk solution.

AB - The near-infrared (NIR) laser Raman trapping system was applied to study liquid-liquid extraction in a single droplet in a subpicoliter range. The system trapped a single subpicoliter toluene droplet in water using the NIR laser beam and provided time-dependent optical images of the droplet during liquid-liquid extraction. The size of the trapped droplet gradually increased after p-nonylphenol solution was added in water. The Raman spectra of the droplet prove that the increase of the droplet size was caused by the absorption of p-nonylphenol from the water. The distribution coefficient of p-nonylphenol in the subpicoliter droplet was much higher than that in bulk solution.

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Investigation of the molecular extraction process in single subpicoliter droplets using a near-infrared laser raman trapping system

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