A novel, fast responding, low noise potentiometric sensor containing a carbon-based polymeric membrane for measuring surfactants in industrial and environmental applications

Application of a New Functionalized MWCNTs for the Construction of Surfactant Potentiometric Sensors

“…At all the selectivity measurements, DS was used as the analyte, in the range from 2 · 10 −6 M to 2 · 10 −3 M, whereas the concentration of the interfering ion was 0.01 M. DDA-TPB + 10 % C [5] DDA-TPB + graphene [19] L 1 [22] PPy-DBS [23] Interference The new FCNSS exhibited excellent selectivity for DS over all of the anions investigated. Comparing with other potentiometric surfactant sensors, FCNSS revealed superior selectivity performances.…”

“…The standard methods for their determination are the methylene blue active substances method (MBAS) and the two-phase titration. [2,3] Due to many disadvantages of the standard methods, ASs are usually determined using other analytical approaches (potentiometric titration, [4,5] chromatography, [6,7] flow-injection analysis, [8,9] spectrophotometry, [10,11] biosensors, [12,13] etc.). Ion-selective electrodes (ISEs) as sensors in potentiometric titrations represent simple, cheap and rapid alternative to the standard methods.…”

Development of an Optode Detector for Determination of Anionic Surfactants by Flow Injection Analysis

“…In addition, many toxic organic solvents such as chloroform are often used in the methods. Considering the above, there is a need for a simpler method based on chemical sensors such as ion selective electrodes (ISEs), [9][10][11][12][13][14][15][16] optical sensors (optodes) [17][18][19][20][21][22][23][24][25][26][27][28] and fiber optic sensors 29,30 to measure ASs without the use of toxic organic solvents.…”