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

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

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.

scholarly journals Assay of Serum Inorganic Phosphate without Deproteinisation: Automated and Manual Micromethods

1974 ◽  
Vol 11 (1-6) ◽  
pp. 234-237 ◽  
Author(s):  
R. Lawrence
Keyword(s):  
Inorganic Phosphate ◽  
Sodium Lauryl Sulphate ◽  
Good Precision ◽  
Molybdenum Blue ◽  
Blue Reaction ◽  
Serum Inorganic Phosphate

Several current techniques for the determination of serum inorganic phosphate in the presence of proteins are shown to have important disadvantages. An improved manual micromethod is described in which proteins are kept in solution by the use of sodium lauryl sulphate and the phosphate determined by the molybdenum blue reaction. The procedure has been adapted for the Technicon AutoAnalyzer and the Vickers D-300 and M-300, and has been shown to give very good precision in routine use.

Photometric Determination of Silica in Aluminous Materials by Molybdenum Blue Reaction

1944 ◽  
Vol 16 (11) ◽  
pp. 705-707 ◽  
Author(s):  
J A. Brabson ◽  
I W. Harvey ◽  
G E. Maxwell ◽  
O A. Schaeffer
Keyword(s):  
Photometric Determination ◽  
Molybdenum Blue ◽  
Blue Reaction

scholarly journals The molybdenum blue reaction for the determination of orthophosphate revisited: Opening the black box

2015 ◽  
Vol 890 ◽  
pp. 60-82 ◽  
Author(s):  
Edward A. Nagul ◽  
Ian D. McKelvie ◽  
Paul Worsfold ◽  
Spas D. Kolev
Keyword(s):  
Black Box ◽  
Molybdenum Blue ◽  
Blue Reaction
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