A Simple in situ Preconcentration Method for Phosphate Phosphorus in Environmental Waters by Column Solid Phase Extraction Using Activated Carbon Loaded with Zirconium.

Analytical Sciences ◽

10.2116/analsci.14.417 ◽

1998 ◽

Vol 14 (2) ◽

pp. 417-419 ◽

Author(s):

Minoru OKUMURA ◽

Kaoru FUJINAGA ◽

Yasushi SEIKE ◽

Kiyotaka HAYASHI

Keyword(s):

Activated Carbon ◽

Solid Phase Extraction ◽

Solid Phase ◽

Phase Extraction ◽

Environmental Waters ◽

Preconcentration Method ◽

In Situ Preconcentration

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A simple and rapid in situ preconcentration method for the determination of phosphate in environmental waters by use of solid-phase extraction, and its applications to brackish lake waters

Fresenius Journal of Analytical Chemistry ◽

10.1007/s002160100739 ◽

2001 ◽

Vol 370 (1) ◽

pp. 104-107 ◽

Author(s):

M. Okumura ◽

L. Tong ◽

Kaoru Fujinaga ◽

Yasushi Seike

Keyword(s):

Solid Phase Extraction ◽

Solid Phase ◽

Phase Extraction ◽

Environmental Waters ◽

Brackish Lake ◽

Lake Waters ◽

Preconcentration Method ◽

In Situ Preconcentration

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Roles of Interfacial Functions in Analytical Chemistry. In situ preconcentration method for thiosulfate and sulfite in environmental water samples using solid-phase extraction followed by a spectrophotometric determination.

BUNSEKI KAGAKU ◽

10.2116/bunsekikagaku.47.985 ◽

1998 ◽

Vol 47 (12) ◽

pp. 985-991 ◽

Author(s):

Minoru OKUMURA ◽

Kaoru FUJINAGA ◽

Yasushi SEIKE ◽

Akihito NAGASHIMA

Keyword(s):

Analytical Chemistry ◽

Solid Phase Extraction ◽

Spectrophotometric Determination ◽

Water Samples ◽

Solid Phase ◽

Environmental Water ◽

Phase Extraction ◽

Preconcentration Method ◽

In Situ Preconcentration

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A Simple and Rapid In Situ Preconcentration Method for the Determination of Fluoride Ion in Environmental Water Using Solid-Phase Extraction

Journal of Ion Exchange ◽

10.5182/jaie.18.518 ◽

2007 ◽

Vol 18 (4) ◽

pp. 518-523 ◽

Author(s):

Minoru Okumura ◽

Tomohiro Yoshimura ◽

Yasushi Seike ◽

Kaoru Fujinaga

Keyword(s):

Solid Phase Extraction ◽

Solid Phase ◽

Environmental Water ◽

Fluoride Ion ◽

Phase Extraction ◽

Preconcentration Method ◽

In Situ Preconcentration

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In situ Preconcentration Method for Iron(II) in Environmental Water Samples Using Solid Phase Extraction Followed by Spectrophotometric Determination.

Analytical Sciences ◽

10.2116/analsci.13.231 ◽

1997 ◽

Vol 13 (2) ◽

pp. 231-235 ◽

Author(s):

Minoru OKUMURA ◽

Yasushi SEIKE ◽

Kaoru FUJINAGA ◽

Kazunori HIRAO

Keyword(s):

Solid Phase Extraction ◽

Spectrophotometric Determination ◽

Water Samples ◽

Solid Phase ◽

Environmental Water ◽

Environmental Water Samples ◽

Phase Extraction ◽

Preconcentration Method ◽

In Situ Preconcentration

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In situ Preconcentration Method for Trace Dissolved Sulfide in Environmental Water Samples Using Solid-Phase Extraction Followed by Spectrophotometric Determination.

Analytical Sciences ◽

10.2116/analsci.15.427 ◽

1999 ◽

Vol 15 (5) ◽

pp. 427-431 ◽

Author(s):

Minoru OKUMURA ◽

Naoaki YANO ◽

Kaoru FUJINAGA ◽

Yasushi SEIKE ◽

Shuji MATSUO

Keyword(s):

Solid Phase Extraction ◽

Spectrophotometric Determination ◽

Water Samples ◽

Solid Phase ◽

Environmental Water ◽

Phase Extraction ◽

Dissolved Sulfide ◽

Preconcentration Method ◽

In Situ Preconcentration

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A Simple and Rapid in situ Preconcentration Method for Trace Ammonia Nitrogen in Environmental Water Samples Using a Solid-Phase Extraction Followed by Spectrophotometric Determination

Analytical Sciences ◽

10.2116/analsci.21.1137 ◽

2005 ◽

Vol 21 (9) ◽

pp. 1137-1140 ◽

Author(s):

Minoru OKUMURA ◽

Sachiko HONDA ◽

Kaoru FUJINAGA ◽

Yasushi SEIKE

Keyword(s):

Solid Phase Extraction ◽

Spectrophotometric Determination ◽

Water Samples ◽

Solid Phase ◽

Environmental Water ◽

Ammonia Nitrogen ◽

Phase Extraction ◽

Preconcentration Method ◽

In Situ Preconcentration

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Speciation of inorganic arsenic in drinking water by wavelength-dispersive X-ray fluorescence spectrometry after in situ preconcentration with miniature solid-phase extraction disks

Talanta ◽

10.1016/j.talanta.2014.12.027 ◽

2015 ◽

Vol 134 ◽

pp. 739-744 ◽

Author(s):

Kenta Hagiwara ◽

Tetsuo Inui ◽

Yuya Koike ◽

Mamoru Aizawa ◽

Toshihiro Nakamura

Keyword(s):

Drinking Water ◽

Solid Phase Extraction ◽

Solid Phase ◽

Inorganic Arsenic ◽

Fluorescence Spectrometry ◽

Phase Extraction ◽

X Ray ◽

In Situ Preconcentration

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A Simple and Rapid in situ Preconcentration Method Using Solid-Phase Extraction for the Determination of Dissolved Manganese in Brackish Lake Water Samples

Analytical Sciences ◽

10.2116/analsci.18.1093 ◽

2002 ◽

Vol 18 (10) ◽

pp. 1093-1097 ◽

Author(s):

Minoru OKUMURA ◽

Takahiro ANATE ◽

Kaoru FUJINAGA ◽

Yasushi SEIKE

Keyword(s):

Solid Phase Extraction ◽

Water Samples ◽

Solid Phase ◽

Phase Extraction ◽

Brackish Lake ◽

Preconcentration Method

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A simple in situ preconcentration for the simultaneous determination of arsenic (III) and arsenic (V) in environmental water samples based on solid-phase extraction

BUNSEKI KAGAKU ◽

10.2116/bunsekikagaku.52.1147 ◽

2003 ◽

Vol 52 (12) ◽

pp. 1147-1152 ◽

Author(s):

Minoru OKUMURA ◽

Kaoru FUJINAGA ◽

Yasushi SEIKE ◽

Mika NAGATA ◽

Shuji MATSUO

Keyword(s):

Solid Phase Extraction ◽

Simultaneous Determination ◽

Water Samples ◽

Solid Phase ◽

Environmental Water ◽

Environmental Water Samples ◽

Phase Extraction ◽

In Situ Preconcentration

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On-site solid-phase extraction and application to in situ preconcentration of heavy metals in surface water

Environmental Monitoring and Assessment ◽

10.1007/s10661-012-2531-2 ◽

2012 ◽

Vol 185 (1) ◽

pp. 39-44 ◽

Author(s):

Fang Jiao ◽

Hong-Wen Gao

Keyword(s):

Heavy Metals ◽

Surface Water ◽

Solid Phase Extraction ◽

Solid Phase ◽

Phase Extraction ◽

In Situ Preconcentration

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