東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Determination of arsenic species in ...

Al-Assaf, Khalid H.

Linked to FindBook

Google Book

Amazon

博客來

Determination of arsenic species in environmental samples.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Determination of arsenic species in environmental samples./
Author:	Al-Assaf, Khalid H.
Description:	218 p.
Notes:	Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1606.
Contained By:	Dissertation Abstracts International68-03B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3254933

Determination of arsenic species in environmental samples.
Al-Assaf, Khalid H.

Determination of arsenic species in environmental samples. - 218 p.

Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1606.

Thesis (Ph.D.)--University of Massachusetts Amherst, 2007.

A method was developed for preconcentration, separation, and determination of arsenic species [As(III), As(V), DMA, and MMA] in water samples by flow injection solid phase extraction hydride generation atomic absorption spectrometry. Competing anion interferences were minimized by employing two anion-exchange columns in series. The method was successfully applied for the determination of trace concentrations in various water samples spiked with a mixture of arsenic species.Subjects--Topical Terms:

586156
Chemistry, Analytical.

Determination of arsenic species in environmental samples.
LDR:03349nmm 2200313 4500 001 1829411
005 20071107102554.5
008 130610s2007 eng d
035 $a (UMI)AAI3254933
035 $a AAI3254933
040 $a UMI $c UMI
100 1 $a Al-Assaf, Khalid H. $3 1918271
245 1 0 $a Determination of arsenic species in environmental samples.
300 $a 218 p.
500 $a Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1606.
500 $a Advisers: Julian F. Tyson; Peter C. Uden.
502 $a Thesis (Ph.D.)--University of Massachusetts Amherst, 2007.
520 $a A method was developed for preconcentration, separation, and determination of arsenic species [As(III), As(V), DMA, and MMA] in water samples by flow injection solid phase extraction hydride generation atomic absorption spectrometry. Competing anion interferences were minimized by employing two anion-exchange columns in series. The method was successfully applied for the determination of trace concentrations in various water samples spiked with a mixture of arsenic species.
520 $a A new method was developed for the determination of ultra-trace amounts of As(III) and As(V) by flow injection solid phase extraction hydride generation atomic absorption spectrometry with tetrahydroborate immobilized on an anion-exchange substrate. The method offers several advantages including simplicity, sensitivity improvement, arsenic speciation, cost reduction and less waste generation compared to the conventional hydride generation AAS method. The method was successfully applied to the determination of As(III) and As(V) in different kinds of environmental water samples including well water, lake water, tap water, spring water, and sea water.
520 $a A new method was developed for the determination of As(III), As(V), DMA and MMA by high performance liquid chromatography hydride generation inductively coupled plasma optical emission spectrometry. The new multimode sample introduction system (MSIS) was employed instead of a conventional gas-liquid separator. The separation was achieved with good resolution and detection limits by using an anion-exchange column, either an IonPac AS10 or an Alltech Anion HC column.
520 $a The extraction of arsenic species from soils was significantly improved with a sequential extraction procedure. Arsenic species extracted were successfully separated and determined by high performance liquid chromatography hydride generation inductively coupled plasma optical emission spectrometry with the MSIS. No significant changes in the arsenic species were observed during the extraction.
520 $a A method was developed for improving the detection of the Hach test kits. Solid phase extraction was used for the preconcentration of arsenic in water samples prior to testing by the Hach kit. The color intensity for all concentrations including those close to 10 mug l-1 was increased. The method was successfully applied to environmental water samples spiked with low arsenic concentrations.
590 $a School code: 0118.
650 4 $a Chemistry, Analytical. $3 586156
690 $a 0486
710 2 0 $a University of Massachusetts Amherst. $3 1019433
773 0 $t Dissertation Abstracts International $g 68-03B.
790 1 0 $a Tyson, Julian F., $e advisor
790 1 0 $a Uden, Peter C., $e advisor
790 $a 0118
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3254933