Multi-syringe flow injection system with in-line microwave digestion for the determination of phosphorus

M. Inês G. S. Almeida; Marcela A. Segundo; José L. F. C. Lima; António O. S. S. Rangel

doi:10.1016/j.talanta.2004.04.006

Multi-syringe flow injection system with in-line microwave digestion for the determination of phosphorus

M. Inês G. S. Almeida, Marcela A. Segundo, José L. F. C. Lima, António O. S. S. Rangel^*

^*Corresponding author for this work

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

23 Citations (Scopus)

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Abstract

A multi-syringe system for spectrophotometric determination of total phosphorus involving in-line digestion is proposed. Sample and digestion solution were dispensed and directed towards a digestion vessel located inside a domestic microwave oven (MWO) where sample digestion took place. Afterwards, the digested sample was merged with the necessary reagents for the colorimetric determination based on the molybdenum blue method. Several digestion conditions were studied regarding composition of digestion solution, digestion time and power set on the MWO. The system was applied to waste water samples and results shown a good agreement with the reference method. Repeatable results (R.S.D.<2.41%) and determination frequency of 12 h^-1 were obtained.

Original language	English
Pages (from-to)	1283-1289
Number of pages	7
Journal	Talanta
Volume	64
Issue number	5
DOIs	https://doi.org/10.1016/j.talanta.2004.04.006
Publication status	Published - 15 Dec 2004

Keywords

In-line digestion
Microwave
Multi-syringe flow analysis
Total phosphorus
Waste waters

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.talanta.2004.04.006

http://hdl.handle.net/10400.14/3515

Cite this

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title = "Multi-syringe flow injection system with in-line microwave digestion for the determination of phosphorus",

abstract = "A multi-syringe system for spectrophotometric determination of total phosphorus involving in-line digestion is proposed. Sample and digestion solution were dispensed and directed towards a digestion vessel located inside a domestic microwave oven (MWO) where sample digestion took place. Afterwards, the digested sample was merged with the necessary reagents for the colorimetric determination based on the molybdenum blue method. Several digestion conditions were studied regarding composition of digestion solution, digestion time and power set on the MWO. The system was applied to waste water samples and results shown a good agreement with the reference method. Repeatable results (R.S.D.<2.41%) and determination frequency of 12 h-1 were obtained.",

keywords = "In-line digestion, Microwave, Multi-syringe flow analysis, Total phosphorus, Waste waters",

author = "Almeida, {M. In{\^e}s G. S.} and Segundo, {Marcela A.} and Lima, {Jos{\'e} L. F. C.} and Rangel, {Ant{\'o}nio O. S. S.}",

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T1 - Multi-syringe flow injection system with in-line microwave digestion for the determination of phosphorus

AU - Almeida, M. Inês G. S.

AU - Segundo, Marcela A.

AU - Lima, José L. F. C.

AU - Rangel, António O. S. S.

PY - 2004/12/15

Y1 - 2004/12/15

N2 - A multi-syringe system for spectrophotometric determination of total phosphorus involving in-line digestion is proposed. Sample and digestion solution were dispensed and directed towards a digestion vessel located inside a domestic microwave oven (MWO) where sample digestion took place. Afterwards, the digested sample was merged with the necessary reagents for the colorimetric determination based on the molybdenum blue method. Several digestion conditions were studied regarding composition of digestion solution, digestion time and power set on the MWO. The system was applied to waste water samples and results shown a good agreement with the reference method. Repeatable results (R.S.D.<2.41%) and determination frequency of 12 h-1 were obtained.

AB - A multi-syringe system for spectrophotometric determination of total phosphorus involving in-line digestion is proposed. Sample and digestion solution were dispensed and directed towards a digestion vessel located inside a domestic microwave oven (MWO) where sample digestion took place. Afterwards, the digested sample was merged with the necessary reagents for the colorimetric determination based on the molybdenum blue method. Several digestion conditions were studied regarding composition of digestion solution, digestion time and power set on the MWO. The system was applied to waste water samples and results shown a good agreement with the reference method. Repeatable results (R.S.D.<2.41%) and determination frequency of 12 h-1 were obtained.

KW - In-line digestion

KW - Microwave

KW - Multi-syringe flow analysis

KW - Total phosphorus

KW - Waste waters

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DO - 10.1016/j.talanta.2004.04.006

M3 - Article

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AN - SCOPUS:7044229327

SN - 0039-9140

VL - 64

SP - 1283

EP - 1289

JO - Talanta

JF - Talanta

IS - 5

ER -

Multi-syringe flow injection system with in-line microwave digestion for the determination of phosphorus

Abstract

Keywords

UN SDGs

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