Microplastic contamination in Indian rice: A comprehensive characterization and health risk assessment.

In this study, we investigate, for the first time, the abundance, distribution, chemical composition, and exposure of microplastics (MPs) in Indian rice and their impact on human health. The physical and chemical characteristics of MPs were measured using a stereomicroscope, μ-Fourier transform infrared spectroscopy, and μ-Raman spectroscopy. MPs were identified in all samples, with an average abundance of 30.

Okra peel-derived nitrogen-doped carbon dots: Eco-friendly synthesis and multi-functional applications in heavy metal ion sensing, nitro compound detection and environmental remediation.

The present study explores the kitchen waste okra peels derived synthesis of nitrogen doped carbon dots (N-CDs) via simple carbonization followed by reflux method. The synthesized N-CDs was characterized using, TEM, XPS, FTIR, XRD, Raman, UV-Visible and Fluorescence Spectroscopy. The N-CDs emits bright blue emission at 420 nm with 12 % of quantum yield as well as it follows excitation dependent emission.

Extractive photometric simultaneous determination of iron(II) and copper(II) with syn-phenyl-alpha-pyridyl ketoxime and analysis of ferrites.

A rapid method of simultaneous spectrophotometric determination of up to 4 ppm of iron(II) and 20 ppm of copper(II) in a mixture by chloroform extraction of the syn-phenyl-alpha-pyridyl ketoxime complexes at pH 10.0, is developed. Measurements are made at 550 and 475 nm.

Selective extraction and separation of iron(III) with 4-methylpentan-2-ol.

4-methylpentan-2-ol is used for quantitative extraction of iron(III) from 5.5-6M hydrochloric acid. The iron(III) is then stripped with water and determined titrimetrically.