Simplified spectrophotometric method using methylene blue for determining anionic surfactants: Applications to the study of primary biodegradation in aerobic screening tests

Jurado, E.; Fernández-Serrano, Mercedes; Núñez-Olea, J.; Luzón, G.; Lechuga, Manuela

doi:10.1016/j.chemosphere.2006.02.044

Cited by 138 publications

(95 citation statements)

References 12 publications

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“…Menurut ICH dalam Gandjar and Rohman (2007), suatu metode dikatakan teliti apabila mempunyai nilai standar deviasi relatif (RSD) kurang dari 2 %. Berdasarkan hasil perhitungan maka dapat dikatakan bahwa metode analisis ini mempunyai ketelitian yang lebih rendah dari pada RSD dari analisis DBS menggunakan metylene biru yang besarnya < 0,1160 % (Jurado et al, 2006), tetapi masih lebih baik dibandingkan dengan RSD dari analisis dengan menggunakan ethyl violet yang besarnya > 2 % (Yamamoto and Motomizu, 1987 …”

Section: Presisiunclassified

Analitical Method Validation of Anionic Surfactant Sodium Dodecyl Benzene Sulfonate (Sdbs) in Catfish by Uv-Vis Spectrophotometry Using Acridine Orange

2017

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ABSTRAKPengembangan metode analisis surfaktan anionik natrium dodesil benzena sulfonat (SDBS) secara spektrofotometri UV-Vis menggunakan acridine orange (AO) dalam ikan lele telah dilakukan. Penelitian ini bertujuan untuk menentukan kondisi optimum analisis dan parameter validasi metode analisis SDBS dalam tubuh ikan lele. Penelitian ini dibagi dua tahap, yaitu isolasi SDBS dalam tubuh ikan lele dengan ekstraksi Soxhlet dan analisis SDBS. Analisis SDBS didasarkan pada pembentukan pasangan ion antara dodesil benzena sulfonat (DBS) dan AO. Hasil penelitian menunjukkan bahwa analisis dilakukan pada panjang gelombang maksimum pasangan ion DBS dan AO 499 nm dengan menggunakan etanol sebagai pelarut AO dan perbandingan mol DBS:AO sebesar 2:1, serta pH optimum 2,97. Validasi metode menunjukkan nilai linearitas (r) 0,998, batas deteksi 0,0343 mg/L, batas kuantifikasi 0,104 mg/L, presisi 0,382 -1,78 %, sensitivitas 4,64 x 10 4 L mol -1 cm -1 dan akurasi 82,11 -100,3 %.Kata kunci: acridine orange, lele, surfaktan, validasi. ABSTRACTThe analytical method development on an anionic surfactant of sodium dodecylbenzenesulfonate (SDBS) in a catfish using spectrophotometer UV-Vis using acridine orange (AO) has been conducted. This research aims to determine the optimum conditions of analysis and to determine validation parameters of sodium dodecylbenzenesulfonate (SDBS) analysis in a catfish. This study was divided into two steps, isolation of sodium dodecyl benzene sulfonate (SDBS) in the catfish with soxhlet extraction and the analysis of SDBS. The analysis of sodium dodecylbenzenesulfonate (SDBS) is based on the formation of ion pair between dodecylbenzenesulfonate (DBS) and acridine orange (AO). The results showed that the analysis can be performed at 499 nm, using ethanol as acridine orange (AO) solvent, the mole ratio of dodecylbenzenesulfonate (DBS) acridine orange (AO) 2:1, and pH 2.97. The parameters of

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Section: Presisiunclassified

Analitical Method Validation of Anionic Surfactant Sodium Dodecyl Benzene Sulfonate (Sdbs) in Catfish by Uv-Vis Spectrophotometry Using Acridine Orange

2017

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“…Electrolysis generates molecular chlorine, which can lead to the formation of hypochlorous acid and hypochlorite ions as shown in Eqs. (8)- (10). These species contain a relatively high oxidative potential, which allows for further degradation of organic pollutants in the wastewater stream.…”

Section: Application Of Biological and Electrocoagulative Treatment Mmentioning

confidence: 99%

“…Ultraviolet-Visible (UV-Vis) spectrophotometry is one of the commonly used techniques for the quantification of surfactants, whereby the method of determination of anionic surfactants entails the use of a cationic dye that complexes with the anionic surfactant through the mechanism of ion association as shown in Figure 2 [10,11].…”

Section: Quantification Of Las By Ultraviolet-visible Spectrophotometrymentioning

confidence: 99%

Electrocoagulative and Biological Treatment of Laundry Wastewater

Ramcharan¹,

Bissessur²

2017

Biological Wastewater Treatment and Resource Recovery

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The greater demand for potable water, both locally and worldwide, has directed a huge interest amongst researchers to investigate the possibility of recycling and reusing wastewater from laundry run-offs. The advantage of using recycling wastewater from such sources is mainly due to the fact that these bulk volumes of wastewater are considered to be less chemically polluted in comparison to those discarded from industrial effluents and wastewater sources. Almost all laundry detergents contain surfactants, whose main function serves to remove dirt/soil from contaminated items. Thus, an analysis of the surfactant levels before and after a treatment process is important to confirm that the surfactant has in fact carried out its intended purpose. Electrocoagulative treatment of wastewater, a well-researched and well-documented clean-up process that involves the production of aluminium hydroxy species by oxidation of aluminium metal upon the application of a controlled voltage which adsorbs fine particulate matter and pollutants from the wastewater has been investigated as a clean-up application to the treatment of laundry wastewater. The use of a biological treatment process which entails treating the wastewater with aerobic bacterial specie specifically designed to degrade fats, lipids, protein, detergents and hydrocarbons has also been investigated.

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“…Target compounds are isolated from the sample according to their relative solubilities in two different immiscible o partially miscible liquid phases, usually water and an organic solvent. Several cationic [20,65] and anionic compounds [78,79] have been extracted from aqueous samples using chloroform, whereas dichloromethane [80] and ethyl acetate [81] have been used to isolate non-ionic surfactants from water. The main advantage of LLE is that it can be used to determine total concentration of these compounds in water in spite of their solid particle matter level.…”

Section: Purification and Preconcentrationmentioning

confidence: 99%

“…However, the tendency of surfactants to concentrate at phase boundaries leads to the formation of emulsions, and phase separation during LLE becomes very difficult. This can be avoided by the formation of liphopilic ion pairs between surfactants and ion-pair reagents [1] (e.g., disulphine blue dyes or LAS for cationic surfactants [65,77,82], methylene blue [78,79,83] or methylene green for anionic surfactants [84], modified Dragendorff reagent for non-ionic [81]). …”

Section: Purification and Preconcentrationmentioning

confidence: 99%