Preconcentration of phosphate ions on graphene oxide decorated with lanthanum oxide from waters followed by energy dispersive X-ray fluorescence spectrometric determination.

A method for energy dispersive X-ray fluorescence spectrometric (EDXRF) determination of phosphate ions via the PKα line in diverse types of water samples is described. The method is based on ultrasonically assisted dispersive micro-solid phase extraction (USA-DMSPE) using lanthanum oxide supported on graphene oxide (LaO-GO) as a solid adsorbent. Under optimal preconcentration conditions, i.

Factors related to personal quality of life in prison inmates.

Objectives: The aim of the study was to analyze the determinants of prison inmates' personal quality of life (PQoL).

Material And Methods: Three hundred ninety men imprisoned in penitentiary institutions were assessed. Data were collected by means of the the , the , the , the , which have high validity and reliability.

Psychophysical quality of life and its determinants in prisoners: the role of selected psychosocial factors.

Purpose: Penal institutions affect their inmates' mental as well as physical health. Prisoners have higher rates of physical health conditions than the public. While it is known that psychosocial factors determine patients' quality of life, little research has focused on factors related to prisoners' psychophysical quality of life (PQoL).

Sensitive determination of uranium using β-cyclodextrin modified graphene oxide and X-ray fluorescence techniques: EDXRF and TXRF.

β-cyclodextrin/graphene oxide (GO-β-CD) was applied for dispersive micro-solid phase extraction (DMSPE) of uranyl ions (UO) from water samples and their determination by energy-dispersive (EDXRF) and total-reflection X-ray fluorescence spectrometry (TXRF). The structure of GO-β-CD was characterized by X-ray photoelectron spectroscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. The results of batch adsorption experiment indicate that the maximum recoveries for UO ions are observed at pH 4.

Synthesis and applications of [60]fullerene nanoconjugate with 5-aminolevulinic acid and its glycoconjugate as drug delivery vehicles.

The 5-aminolevulinic acid (5-ALA) prodrug is widely used in clinical applications, primarily for skin cancer treatments and to visualize brain tumors in neurosurgery. Unfortunately, its applications are limited by unfavorable pharmacological properties, especially low lipophilicity; therefore, efficient nanovehicles are needed. For this purpose, we synthesized and characterized two novel water-soluble fullerene nanomaterials containing 5-ALA and d-glucuronic acid components.