Development of a Low-Cost UV-Vis Spectrophotometer and Its Application for the Detection of Mercuric Ions Assisted by Chemosensors

González-Morales, David F.; Valencia, Asmilly; Díaz-Nuñez, Astrid; Fuentes-Estrada, Marcial; López-Santos, Oswaldo; García‐Beltrán, Olimpo

doi:10.3390/s20030906

Cited by 31 publications

(26 citation statements)

References 43 publications

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“…The American Public Health Association (APHA) 4500-Nor was used to determine the concentrations of total phosphorous in the samples [ 45 ], while the lab pH-meter (Hach Co), Frederick, MD, US, was used for pH measurements. Determination of color concentration in the samples was achieved using the UV-V Spectrophotometer (PE-5400UV) pr-in ECOCHEMICAL, St. Petersburg, Russia [ 46 ], and the TSS was measured using the Hach TSS portable hand-held turbidity meter Hach Co, HACH/LANGE, Berlin, Germany. In general, analyses of all the studied samples were accomplished following the recommendations in the APHA Standard Methods for the Examination of Water and Wastewater [ 47 ].…”

Section: Methodsmentioning

confidence: 99%

Performance of Graphite and Titanium as Cathode Electrode Materials on Poultry Slaughterhouse Wastewater Treatment

et al. 2020

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Despite the potential applicability of the combination between aluminium (anode) and graphite or titanium (cathode) for poultry slaughterhouse wastewater treatment, their technical and economic feasibilities have not been comprehensively captured. In this study, aluminium (anode) and graphite and titanium as cathode electrode materials were investigated and compared in terms of their performance on poultry slaughterhouse wastewater treatment. The wastewater samples collected from the Izhevsk Production Corporative (PC) poultry farm in Kazakhstan were treated using a lab-based electrochemical treatment plant and then analyzed after every 20 and 40 min of the treatment processes. Cost analysis for both electrode combinations was also performed. From the analysis results, the aluminium–graphite electrode combination achieved high removal efficiency from turbidity, color, nitrite, phosphates, and chemical oxygen demand, with removal efficiency ranging from 72% to 98% after 20 min, as well as 88% to 100% after 40 min. A similar phenomenon was also observed from the aluminium–titanium electrode combination, with high removal efficiency achieved from turbidity, color, total suspended solids, nitrite, phosphates, and chemical oxygen demand, ranging from 81% to 100% after 20 min as well as from 91% to 100% after 40 min. This means the treatment performances for both aluminium–graphite and aluminium–titanium electrode combinations were highly affected by the contact time. The general performance in terms of removal efficiency indicates that the aluminium–titanium electrode combination outperformed the aluminium–graphite electrode combination. However, the inert character of the graphite electrode led to a positive impact on the total operating cost. Therefore, the aluminium–graphite electrode combination was observed to be cheaper than the aluminium–titanium electrode combination in terms of the operating cost.

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Section: Methodsmentioning

confidence: 99%

Performance of Graphite and Titanium as Cathode Electrode Materials on Poultry Slaughterhouse Wastewater Treatment

et al. 2020

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“…Portable low-cost open-source wireless spectrophotometer for fast and reliable Measurements (17) € 225 Development of a Low-Cost UV-Vis Spectrophotometer and Its Application for the Detection of Mercuric Ions Assisted by Chemosensors (18) US$ 86 (15,19) used Arduino as a controller Cost will be high…”

Section: Circuit Analysismentioning

confidence: 99%

“…(15) The electronics field is an interesting concern among innovation designers. (16) The microcontroller is a fundamental part of automated devices, where it controls and minimizes manual activity.In (17)(18)(19) , utilize Arduino as a microcontroller (µc) which is costly as compared to the PIC microcontroller.…”

Section: Introductionmentioning

confidence: 99%

A low-cost absorbance measurement device using microcontroller

Shree¹,

Shinde²

2021

IJST

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Objectives: To design a low-cost absorbance measurement device using a microcontroller that can be used for student's learning. Methods/Statistical analysis: The setup device is designed based upon Beer-Lambert Law with some LEDs through various sample solutions along with LDR at a different range of wavelength and the results are shown on a 16x2 LCD by use of a PIC16F877a microcontroller. The results are also compared with the standard colorimetric method. Findings: The setup device able to measure the absorbance of different colors of sample solutions at a wide range of wavelength (400-700nm) and measured by utilizing different LEDs to the transmitter end and an LDR at the receiver end. The proposed experimental device's performance was compared with the standard colorimeter for efficiency check. The efficiency of the setup device is near to the colorimeter of more than 95%. Novelty/Applications: For educational purpose, the proposed setup device is well affordable due to low cost (US$10.98) and easy to maintain because of compact size and data acquisition directly through microcontroller.

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“…Designing of low-cost spectrometer and its usage are carried out in past one decade. However, we are still facing challenges such as recent COVID-19 PCR or antigen analysis using spectrometer [1][2][3][4][5]. The whole idea behind construction of lowcost spectrometer is to make it available for all kinds of users.…”

Section: Introductionmentioning

confidence: 99%

Designing of low-cost spectrometer for sensor application

Likith

Jayram

Yaswanth

et al. 2021

J Opt

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Increase in the population demands healthy food, clean air, fresh water and high secured life. To fulfil the above demands, spectrometers such as ultraviolet, Fourier transformation infrared, Raman, HPLC, gas chromatography are used as confirmation tool for identification of materials. The cost and space of above-mentioned instruments are more and to build low-cost spectrometer with high efficiency is a challenging research area for material scientists and engineers. In the present work, an attempt has been made to manufacture a low-cost spectrometer. The spectrometer has been designed using cardboard, DVD, a webcam and free available spectrum software named as theremino. The DVD is used as a diffraction grating and webcam as an image sensor with an overall cost of Rs 1000. This can be used as an instrument for practical demonstration for students and other research purposes for detecting pesticides level in fruits and vegetables, sensing water purity level, edible oils, etc. The spectral range can be improved by removing infrared filter integrated in webcam. The performance of the constructed spectrometer could be upgrade using effective filters and high intense low-cost lasers. This designed spectrometer will be a boon towards application in healthcare, biomedicals and food processing applications.

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Development of a Low-Cost UV-Vis Spectrophotometer and Its Application for the Detection of Mercuric Ions Assisted by Chemosensors

Cited by 31 publications

References 43 publications

Performance of Graphite and Titanium as Cathode Electrode Materials on Poultry Slaughterhouse Wastewater Treatment

Performance of Graphite and Titanium as Cathode Electrode Materials on Poultry Slaughterhouse Wastewater Treatment

A low-cost absorbance measurement device using microcontroller

Designing of low-cost spectrometer for sensor application

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