We applied a partial least squares regression (PLS) to overlapped peaks develop rapid flow injection analysis by the PLS method (RFP method) that quantifies analytes of interest both accurately and rapidly. Spectrophotometric determination Fe2+ with 1,10-phenanthroline was used as an evaluation model RFP method. Two standard samples (S1 S2) were sequentially injected at 30-sec interval, obtaine...

A technique to detect residual tetracyclines (TCs) in honey by HPLC and derivative UV-Vis spectra is examined in this study. Chromatograms of honey products often experience overlapped peaks and sloping background due to similar retention properties of components or to the presence of impurities. The derivatives provide resolution of overlapped peaks in an UV-Vis spectrum and eventually bring c...

The thermoluminescence (TL) properties of CVD diamond film irradiated with b rays and illuminated with UV and visible light (200–450 nm) have been studied. The film (23mm) was grown for 47 h on monocrystalline silicon. The TL glow curves are similar for b irradiation and short wavelength UV light. The b dose response curves and UV light time response curves exhibit linear–supralinear–sublinear ...

In this work, an improved single-column chromatographic (ISCC) separation process is proposed. The term `improved' refers to both conceptual and physical modifications compared to the available single-column processes, including a novel fraction collection scheme and allowing overlapped peaks from adjacent cycles. Also the fraction collection mechanism was modified in order to facilitate online...

nano-cufe2o4 catalysts with different cu/fe molar ratios (cunfemo(n+1.5m)) were prepared by hydrothermal method. the thermal decomposition performance of cunfemo(n+1.5m) on cuso4 were determined with tg-dsc method to evaluate its catalytic activity and the roasted product was characterized by xrd. the results showed that cunfemo(n+1.5m) had superior catalytic properties and efficiency to cuso4 ...

Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were performed with a glassy carbon electrode (GCE) modified with polyglutamic acid (PGA) on the three dihydroxybenzene isomers, catechol (CT), hydroquinone (HQ), and resorcinol (RS). At bare GCE, these isomers exhibited voltammograms with highly overlapped redox peaks that impeded their simultaneous detection in binary and ternar...