Volume-18 ~ Issue-7 ~ July 2025

Abstract: Researchers today exhibit great enthusiasm for utilizing agro-waste and mineral-based adsorbents to eliminate heavy metal ions from aqueous solutions as well as industrial effluents. Adsorbents, which are solid materials, play a crucial role in eliminating impurities such as heavy metals from water—substances hazardous to both human state as well as the environment. The environment is a precious gift from God to all living beings, and safeguarding the earth's natural resources through careful planning and management is essential for the well-being of present and future generations.......

Keywords: Agricultural waste, minerals, Adsorbents, wastewater treatment.

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Abstract: Bivalirudin is a peptide medication derived from natural peptide, Hirudin. One unknown peptide impurity was observed in stability studies sample provided by pharmaceutical company Piramal Pharma Ltd at RRT 0.44. It was purified using open column chromatography and preparative HPLC to 98.03% for chemical characterization. High Resolution Mass Spectrometry based Amino Acid Sequencing was carried out to get amino acid sequence. It has provided sequence of total 18 amino acids as Arginine –Proline – Glycine – Glycine – Glycine – Glycine – Asparagine – Glycine – Aspartic acid – Phenylalanine – Glutamic acid – Glutamic acid – Isoleucin – Proline – Glutamic acid – Glutamic acid – Tyrosine – Leucine........

Keywords: Bivalirudin, COSY, DEPT, HSQC, HMBC.

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