JBCS

Light emitting diode (LED)-induced fluorescence equipment was used in the biodiesel/diesel/sulfur sample readings and after the analysis the data treatment was done using partial least squares (PLS).

Copper promotes the reduction of CoO and forms Cu⁰–Co⁰ active sites; in addition to this center, Co⁰–Co²⁺ is also the center for high alcohols synthesis and Co²⁺ site favor alcohols yields. Excellent C₂₊ alcohols selectivity is got over the catalyst with weight ratio of Cu/Co = 1.

The uncatalyzed Knoevenagel condensation between aldehydes and different compounds with active methylene was performed under new conditions using a mixture of ethanol/water (3:7, v/v), showing a good isolated yields in a short reaction time.

The 2,1,3-benzothiadiazole compound can be used safely in manufacturing as a dye for paints and photovoltaic devices.

A multicommuted flow system for spectrophotometric determination of formaldehyde in mushroom based on the Hantzsch reaction (λ_max = 412 nm) is reported with a detection limit of 0.02 mg L^-1, sample throughput of 17 h^-1 and reduced chemical waste.

Transition between chemical and thermokinetic oscillations mediated by a stoichiometric bifurcation parameter in a hypothetical biological context: muscle fatigue and possible ATP thermosynthesis.

A new method for analysis of the antimicrobial oxolinic acid (OXA) in untreated water was developed using carbon paste electrode.

Introduction of zero-valent iron nanoparticles into amino-polydimethylsiloxane based materials allows easy recovery of the particles while maintaining their reactivity toward the dehalogenation of environmental pollutants.

Proposed N-myristoyltransferase (NMT) inhibitors of Leishmania donovani anchored in the active site of the enzyme.

Traditional Chinese medicine injections were analyzed based on an ionic liquid column. U-Shape plots of retention factors vs. mobile phase constitutions were obtained and mixed-mode chromatography was applied for this kind of complex system.

Comparison between the two processes via: (i) assessment of the process of Si, Al and contaminants in the extracts, zeolitic, products and effluents, (ii) cation exchange capacity and purity, and (iii) reaction yields and percentage of Si and Al incorporated into zeolites, among others.

The combination of near-infrared (NIR) spectroscopy and deep learning algorithm is a promising classification tool of discriminating different categories of objects.

DMTD-PT, a persimmon tannin (PT)-based and 2,5-dimercapto-1,3,4-thiadiazole (DMTD) grafted biosorbent, showed the better selectivity for Au^III over coexisting base metal ions in aqueous solution.

Bar spectra and coincidence indexes establish new horizons for the infrared spectroscopy of solids. Polymorphs are precisely detected and quantified. This method may become an important tool for studying polymorphs in active pharmaceutical ingredients (APIs).

After one-step and two-step intercalations, the structure and properties of montmorillonite (MMT) affect the formation of dimer acids by the dimerization of unsaturated fatty acids.

Solar fuels were obtained from CO₂ and H₂O photoreduction using ETS-10/Cu_xO as photocatalyst.

In this work, a method was developed, based on dispersive liquid-liquid microextraction (DLLME)-ultra-fast liquid chromatography coupled to diode array detector (UFLC-DAD), to simultaneously determine ten antibiotics in honey and for studying their degradation kinetics.

Benznidazole (BZL), metronidazole (MTZ), nifurtimox (NFX) and megazol (MZ) can be carried in the human bloodstream by human serum albumin (HSA). NFX showed differences in the thermodynamic parameters; the presence of the 1,3,4-thiadiazole group in the MZ structure results in better interaction with HSA.

A water soluble fluorescent chemosensor (DA) was successfully synthesized. It could fluorescent detect CN^- with high selectivity and sensitivity in pure water via an intramolecular charge transfer to twisted intramolecular charge transfer (ICT-TICT) state change mechanism.

Determination of 25 elements in fresh and sea water by inductively coupled plasma mass spectrometry (ICP-MS) in order to support four Brazilian regulations. High matrix introduction (HMI) system allowed sea water analysis with only 2-fold dilution.

In this work we evaluated the mercury biodistribution after different doses of HgCl₂. Mercury was deposited preferentially in some tissues while the blood levels remained practically constant. Therefore, it is suggested that blood mercury monitoring is relevant only when the tissues turn saturated.

Estimation of phosphorus distribution in orange juice by different sample treatment strategies including fractioning in function of its particle size and charge.