id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
eurjchem-1987	Ahmed, Mohammed Jamaluddin; Hossain, Faisal; Mahmood, Esham	A highly selective and simple spectrophotometric method for the determination of zinc at nano-trace levels in some environmental, biological, food, and pharmaceutical samples using 2-hydroxynaphthaldehydebenzoylhydrazone	2020	8	.pdf	application/pdf	5884	413	65	Sample collection and preservation Polythene bottles were used to collect water samples from several locations of the Chittagong area, Bangladesh, and HNO3 (1 mL/L) were employed as a preservative. Water samples were prepared by a method proposed by Greenberg et al.	cache/eurjchem-1987.pdf	txt/eurjchem-1987.txt