The nature of the salt error in the Sn(II)-reduced molybdenum blue reaction for determination of dissolved reactive phosphorus in saline waters

2015 ◽  
Vol 896 ◽  
pp. 120-127 ◽  
Author(s):  
Edward A. Nagul ◽  
Ian D. McKelvie ◽  
Spas D. Kolev
Keyword(s):  
Molybdenum Blue ◽  
Saline Waters ◽  
Dissolved Reactive Phosphorus ◽  
Reactive Phosphorus ◽  
Blue Reaction

Continuous Flow Analysis Method for Determination of Dissolved Reactive Phosphorus in Ice Cores

2013 ◽  
Vol 47 (21) ◽  
pp. 12325-12332 ◽  
Author(s):  
Helle Astrid Kjær ◽  
Paul Vallelonga ◽  
Anders Svensson ◽  
Magnus Elleskov L. Kristensen ◽  
Catalin Tibuleac ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Flow Analysis ◽  
Ice Cores ◽  
Analysis Method ◽  
Continuous Flow Analysis ◽  
Dissolved Reactive Phosphorus ◽  
Reactive Phosphorus

Modifications of spectrophotometric methods for total phosphorus determination in meat samples

2009 ◽  
Vol 63 (1) ◽  
Author(s):  
Aneta Jastrzębska
Keyword(s):  
Total Phosphorus ◽  
Reducing Agents ◽  
Statistical Parameters ◽  
Molybdenum Blue ◽  
Spectrophotometric Methods ◽  
Hydrazine Sulphate ◽  
Meat Samples ◽  
Blue Reaction ◽  
Better Than

AbstractSpectrophotometric determination of total phosphorus in meat samples was modified using the molybdenum blue reaction with the following reducing agents: ascorbic acid (AA), hydrazine sulphate (HS), and mixture of hydroquinone and hydrazine sulphate (HHS). Proposed methods were validated by evaluation of statistical parameters such as: linearity, sensitivity, limits of detection (DL) and quantification (QL), precision, and accuracy, against the standard and malachite green (MG) modified procedures and by applying food certified materials. The values of within-day and between-days precision in meat samples for all tested reducing agents were better than 3.4 % and 4.2 %, respectively. The recoveries for CRMs analyses were between 92 % and 102.3 %. Obtained results suggest usefulness of the hydroquinone and hydrazine sulphate mixture in the determination of phosphorus ions.

Pervaporation-flow injection determination of arsenic based on hydride generation and the molybdenum blue reaction

2001 ◽  
Vol 445 (2) ◽  
pp. 229-238 ◽  
Author(s):  
Thusitha Rupasinghe ◽  
Terence J Cardwell ◽  
Robert W Cattrall ◽  
Maria D.Luque de Castro ◽  
Spas D Kolev
Keyword(s):  
Flow Injection ◽  
Hydride Generation ◽  
Molybdenum Blue ◽  
Blue Reaction

Cerimetric Determination of Molybdenum in High Chloride Media Using Molybdenum Blue Reaction

1960 ◽  
Vol 32 (6) ◽  
pp. 635-637 ◽  
Author(s):  
C. M. Callahan ◽  
S. C. Foti ◽  
J. R. Lai
Keyword(s):  
Molybdenum Blue ◽  
Blue Reaction ◽  
High Chloride

Automated Simultaneous Calcium and Phosphorus Analysis

1967 ◽  
Vol 13 (12) ◽  
pp. 1071-1078 ◽  
Author(s):  
Bernard Klein ◽  
James H Kaufman ◽  
John Isaacs
Keyword(s):  
Simultaneous Determination ◽  
Serum Calcium ◽  
Flow System ◽  
Reducing Agent ◽  
Molybdenum Blue ◽  
Calcium And Phosphorus ◽  
Blue Reaction

Abstract A procedure is described for the automated simultaneous determination of serum calcium and phosphorus. Calcium is assayed fluorometrically; phosphorus is determined spectrophotometrically by the molybdenum blue reaction in an improved flow system with a more sensitive reducing agent.

Determination of Dissolved Reactive Phosphorus in Estuarine Waters Using a Reversed Flow Injection Manifold†

The Analyst ◽  
1997 ◽  
Vol 122 (12) ◽  
pp. 1477-1480 ◽  
Author(s):  
Stefan Auflitsch ◽  
Darren M. W. Peat ◽  
Paul J. Worsfold ◽  
Stefan Auflitsch ◽  
Ian D. McKelvie
Keyword(s):  
Flow Injection ◽  
Reversed Flow ◽  
Estuarine Waters ◽  
Dissolved Reactive Phosphorus ◽  
Reactive Phosphorus
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