A simple and sensitive spectrophotometric method combined with solid-phase extraction (SPE) for the simultaneous determination of sodium linear-dodecylbenzenesulfonate (DBS) and sodium dodecyl sulfate (SDS) is described. The C2 (ethyl group bonded silicagel) cartridge could be repeatedly used more than 500 times for SPE, and it enabled the anionic surfactants to be concentrated by 50-fold. The ...

Controlling molecular assembly by analytes is attractive for analytical techniques. Herein, we designed and synthesized amphiphilic boronic acid fluorescent probes (B-Nap-C8) possessing naphthaleneboronic as a saccharide recognition site alkyl chain hydrophobic moiety. We evaluated their function in relation to the or absorption intensity changes of assembled B-Nap-C8. Also, B-Nap-C8 effect co-...

We have (a) screened a variety of cell lines and body fluids for plasminogen activators and (b) studied the activity of proteases bound to alpha2- macroglobulin after exposing the complexes to partial degradation and/or denaturing procedures to unmask proteolytic activity. The respective results show (a) that the plasminogen activators in urine and cell culture media are generally of lower mole...

Despite multiple procedures used to isolate transverse tubule vesicles from rabbit skeletal muscle, few proteins have been identified and shown to be specific to transverse tubule vesicles. Markers for purified transverse tubules have included high affinity dihydropyridine binding, cholesterol content, Mg2+-ATPase activity, (Na+,K+)-ATPase activity, and [3H] ouabain binding. Despite these marke...

The molecular weight of the major glycoprotein from the human erythrocyte membrane is 29,000, of which 55% is carbohydrate and 45% is protein. The binding of sodium dodecyl sulfate to this glycoprotein is anomalous when compared to water soluble proteins and leads to migration rates in sodium dodecyl sulfate-polyacrylamide gels that cannot be interpreted in terms of molecular weight. Anomalous ...

Abstract This paper evaluates the remediation of soil spiked with lindane using a combined treatment consisting electrokinetic flushing (EKSF) air stripping to elucidate main processes occurring in when electric fields 0.75 V cm −1 and 1.50 are applied. The results demonstrate that is efficiently transported anodic cathodic wells fluids containing sodium dodecyl sulfate (SDS). Additionally, an ...

A simple and environmentally friendly surfactant-assisted microextraction method combined with high-performance liquid chromatography fluorescence detection was developed for the determination of six fluoroquinolones in chicken livers. In method, analytes were transported into hydrophobic extraction by ionic nonionic surfactants. Three different surfactants studied this purpose, cationic Methyl...

Abstract Electrostatic samplers have been increasingly studied for sampling of viral and bacterial aerosols, bioaerosol are required to provide concentrated liquid samples with high physical collection biological recovery, which would be critical rapid detection. Here, the effects media protocols on recovery two airborne bacteria ( Pseudomonas fluorescens Micrococcus luteus ) under electrostati...

The tribological enhancement of nano-lubricant that consist formulated Eichhornia Crassipes carbon nanotubes (EC-CNTs) dispersed in base rapeseed oil using sodium dodecyl sulfate (SDS) and oleic acid (OA) as surfactants was conducted this study. experiment done high frequency reciprocating rig, applying 0.5 mass%, 1 mass% 1.5 EC-CNTs alongside 2% 5% the various sonicated for 25 minutes 50 respe...

Udang Vaname ( Litopenaeus vannamei) pada sebagian orang dapat memicu alergi bila dikonsumsi. Dengan pengolahan seperti proses perebusan diharapkan menurunkan sifat alergenitas protein udang tersebut. Adapun tujuan dari penelitian ini adalah untuk memperoleh karakterisasi terkait adanya perubahan profil bobot molekul (BM) alergen dan tingkat vaname selama perebusan. Metode yang digunakan di dal...