A Literature Review on the Indicators in Precipitation

Al-Husseini, Zaid Noor Obaid

doi:10.46545/aijser.v2i1.26

Cited by 2 publications

(2 citation statements)

References 26 publications

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“…Further evaluation was done by adding indicators to SLS to observe the reaction of milk. Indicator is a halochromic chemical compound added in small amounts to a solution so that the reaction of the solution can be determined visually [36,37]. Therefore, SLS with or without NaOH [38], and Badiuzzaman et al [25] also reported the lower Se of WST and SFMT.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of sodium lauryl sulfate for the development of cow-side mastitis screening test

et al. 2021

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Background and Aim: Subclinical mastitis (SCM) is an economically important disease for dairy cattle worldwide; therefore, regular screening is imperative to detect SCM at an early stage so as to control it. The study was conducted to compare the test characteristics of sodium lauryl sulfate (SLS) as a test reagent to detect SCM in dairy cows. Materials and Methods: First, 106 milk samples of dairy cows were subjected to available indirect screening tests (white side test [WST], surf field mastitis test, Leucocytest, and Immucell) considering somatic cell count (SCC) as gold standard test. Then 273 milk samples were allowed to react with different concentrations of SLS with or without sodium hydroxide (NaOH) and indicators (bromothymol blue [BTB] and bromocresol purple [BCP]). Results: SLS with or without NaOH yielded best reaction with the milk samples similar to Leucocytest. It was observed that the reaction of milk samples with SLS added with indicators (BTB and BCP) was easier to visualize than without indicators. SLS 3%+NaOH 1.5% with BTB and SLS 2% with BCP had high sensitivity, specificity, and substantial agreement with SCC. The area under the receiver operating characteristics curve of SLS 2% with BCP and SLS 3%+NaOH 1.5% with BTB was 0.917 and 0.875, respectively. Conclusion: It may be concluded that SLS 3%+NaOH 1.5% with BTB and SLS 2% with BCP may be the potential reagents for the development of an effective cow-side test to detect SCM, as the main ingredient SLS is considerably cheap and readily available in developing countries.

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Section: Discussionmentioning

confidence: 99%

Evaluation of sodium lauryl sulfate for the development of cow-side mastitis screening test

et al. 2021

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“…The redox indicators cause significant electrical or color changes, due to the conversion of the reduced form to the oxidized one [ 170 ]. These indicators must be able to generate a rapid and reversible response, establishing a rapid chemical equilibrium between the reduced and oxidized forms [ 171 ].…”

Section: Classification Of Bio-ppoct Based On Detection Elementsmentioning

confidence: 99%

Disposable Paper-Based Biosensors for the Point-of-Care Detection of Hazardous Contaminations—A Review

Bordbar

Sheini

Hashemi³

et al. 2021

Biosensors

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The fast detection of trace amounts of hazardous contaminations can prevent serious damage to the environment. Paper-based sensors offer a new perspective on the world of analytical methods, overcoming previous limitations by fabricating a simple device with valuable benefits such as flexibility, biocompatibility, disposability, biodegradability, easy operation, large surface-to-volume ratio, and cost-effectiveness. Depending on the performance type, the device can be used to analyze the analyte in the liquid or vapor phase. For liquid samples, various structures (including a dipstick, as well as microfluidic and lateral flow) have been constructed. Paper-based 3D sensors are prepared by gluing and folding different layers of a piece of paper, being more user-friendly, due to the combination of several preparation methods, the integration of different sensor elements, and the connection between two methods of detection in a small set. Paper sensors can be used in chromatographic, electrochemical, and colorimetric processes, depending on the type of transducer. Additionally, in recent years, the applicability of these sensors has been investigated in various applications, such as food and water quality, environmental monitoring, disease diagnosis, and medical sciences. Here, we review the development (from 2010 to 2021) of paper methods in the field of the detection and determination of toxic substances.

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A Literature Review on the Indicators in Precipitation

Cited by 2 publications

References 26 publications

Evaluation of sodium lauryl sulfate for the development of cow-side mastitis screening test

Evaluation of sodium lauryl sulfate for the development of cow-side mastitis screening test

Disposable Paper-Based Biosensors for the Point-of-Care Detection of Hazardous Contaminations—A Review

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