Application of Moveable Suspensions of Solid Particles in Flow Analysis

Trojanowicz, Marek

doi:10.1002/9783527623259.ch3

Cited by 4 publications

(4 citation statements)

References 95 publications

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“…Flow techniques have proved to be suitable tools for the in-situ determination of nutrient species in natural waters since these techniques are fast, portable, easy to automate, and they provide high-quality data with high temporal resolution [ 2 ]. In many modern applications (e.g., HPLC, capillary electrophoresis, or hyphenated methods), controlled flow techniques are welcome and widely used because they help to improve the precision and reproducibility of the measurements [ 3 , 4 ]. Most reported flow applications of nitrate determination are based on flow injection analysis (FIA) [ 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

A Multi-Pumping Gradient Calibration Module for Potentiometric Determination of Nitrate in Surface Water

et al. 2023

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The novel, automated, multi-pumping flow system (MPFS) for online calibration and determination of nitrate in surface water is presented for the first time. The system was equipped with micropumps of three different nominal volumes (10, 20, and 50 µL). As a result, it was possible to prepare from one standard, directly in a flow system, up to seven standard solutions. Determination of nitrate was conducted in stop-flow conditions and is based on a commercially available ion selective electrode (ISE) application. It was found that the linearity and slope of the calibration graphs depend mainly on the characteristics of the ISE. The obtained results were very repeatable, owing to the high precision of the micro-pumps used. The R.S.D. for the stroke volume of each micro-pump was below 1%. The accuracy of the method was checked through determination of nitrate in surface water samples. The obtained results were compared with those of the reference method (photometric Hach cuvette tests). It was found that, at a 96% confidence level, the difference between the results obtained by the proposed method and the reference method was statistically insignificant. The accuracy of the method was confirmed through the determination of nitrate in Certified Reference Material. The relative deviation (R.D.) of the measured and the certified concentrations was 5%.

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Section: Introductionmentioning

confidence: 99%

A Multi-Pumping Gradient Calibration Module for Potentiometric Determination of Nitrate in Surface Water

et al. 2023

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“…The extreme versality of this technique makes it stand out from most new analytical techniques (Ruzicka and Hansen, 2005). The present interest in pollution monitoring has resulted in the development of new analytical method or the a daption of existing methods for determination of pollution .In view of the growing demand for such analysis, the analytical method developed for the purpose should be operated on a continuous basis (Trojanowicz 2008). In fact this is one of the areas where FIA is most frequently applied (Ruzicka and Hansen, 2005).…”

Section: Introductionmentioning

confidence: 99%

Determination of phosphate levels in the southern part of Al-Hammar marsh water by flow injection analysis

Al-Sowdani

Aljorany

2022

MJMS

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Flow Injection Analysis (FIA) was applied to determine phosphate concentration in water of the southern part of Al-Hammar marsh water from July 2007 to July 2008. A linear line was obtained over the range 0.25- 1.75 μg/ml of phosphate with regression coefficient for seven points is 0.9999. The detection limit was 0.075 μg/ml with % R.S.D for ten replicate analysis of 1.0 μg/ml phosphate is 0.511% and the dispersion coefficient in the flow system is 5.4. The samples can be analyzed at rates exceeding 72 sample per hour .It was noted that phosphate concentration ranged 0.295 - 1.450 μg/ml, whereas the maximum phosphate concentration was recorded in spring 2008 and the minimum in autumn 2008.

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“…Flow injection analysis (FIA) is one of the most popular continuous flow techniques It is simple and versatile analytical technology for automating wet chemical analysis (Trojanowicz, 2008). FIA system is characterized by very short time and the analytical signal is obtained with second and which leads to high sample throughput (Barnett et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Bulid-up a flow injection analysis unit for ammonium determination in the Shatt Al-Arab water

Aljorany

Al-Sowdani

Mizhir

2022

MJMS

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A Semi- automated flow injection analysis (FIA) unit was build-up for determination of ammonium ion in water samples from the Shatt Al-Arab River during the period from October 2009 to September 2010. The ammonium concentrations in water have been measured, at each of the eight stations (Qurnah (Tigres), Qurnah (Euphrates), Saad Bridge, Garmat Ali, Ashar, Abu Al-Khaseeb, Al-Seeba and Fao), monthly. The results indicated that (NH4+) concentrations increasing during May, June and July, 2010 especially in stations 5 and 6 were 0.95, 1.35 µg/ml , 1.30, 1.25 µg/ml and 1.45, 1.40 µg/ml, respectively. The FIA unit was applied successfully for the determination of ammonium in Shatt Al-Arab water sample and provide simple, fast, and reproducible methods for ammonium determination in water.

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Application of Moveable Suspensions of Solid Particles in Flow Analysis

Cited by 4 publications

References 95 publications

A Multi-Pumping Gradient Calibration Module for Potentiometric Determination of Nitrate in Surface Water

A Multi-Pumping Gradient Calibration Module for Potentiometric Determination of Nitrate in Surface Water

Determination of phosphate levels in the southern part of Al-Hammar marsh water by flow injection analysis

Bulid-up a flow injection analysis unit for ammonium determination in the Shatt Al-Arab water

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