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Design and Construction of a New Modified Screen‐Printed Sensor for Voltammetric Determination of Molybdenum(VI) Ions
Author(s) -
Sadeghi Susan,
Garmroodi Aziz
Publication year - 2013
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201200413
Subject(s) - tetraphenylborate , calibration curve , molybdenum , detection limit , screen printing , substrate (aquarium) , materials science , electrode , electrochemistry , analytical chemistry (journal) , ion , chemistry , chromatography , metallurgy , oceanography , organic chemistry , composite material , geology
The development of a new electrochemical sensor for determination of trace molybdenum, based on cupferron‐tetraphenylborate ion‐pair drop coated modified screen‐printed carbon electrode (Cup‐SPCE) is described. The printing inks, printing device, substrate and all used materials for making the sensor were prepared as homemade. Under the optimum conditions, the analytical calibration curve was found bimodal with linear concentration ranges from 5 to 200 ng mL −1 and from 200 to 2000 ng mL −1 . The detection limit of the method in the concentration of 5–200 ng mL −1 was found to be 2.5 ng mL −1 . The method was successfully applied for the determination of Mo(VI) in drinking water samples.