Abct3759 Analytical Chemistry Ii Laboratory Report - Group 5

Subject code: ABCT3759Subject title: Analytical Chemistry II LaboratoryExperiment Title: Determination of Nickel in Brass by Flame Atomic Absorption andInductively Coupled Plasma SpectroscopyExperiment Number: 1Name: Chan Hung Ming HenryStudent ID: 21092859dGroup number: 5Date of experiment: 8 th March 2023Objective:The objective of this experiment is to determine the percentage composition of nickel in the sample through FAAS and AES methods and familiarize the operating control of the above method.ConditionPreparation of calibration solutionTable 1: Calibration solution of ICP-OES:Solutionnumber 10ppm Nisolutionadded(mL) 100ppm Cusolutionadded (mL) Conc. HCL,Conc.HNO3added Totalvolume (mL) Conc.of Ni,ppm Conc.of Cu,ppm1 5 5 2 drops each 50 1 102 10 10 2 drops each 50 2 203 15 15 2 drops each 50 3 304 20 20 2 drops each 50 4 405 10-times diluted sample brass solution in 250mL volumetric flask6 100-times diluted sample brass solution in 250mL volumetric flaskTable 2 : Calibration solutions of FAAS:Solutionnumber 100ppmNisolutionadded(mL) 1000ppmCu solutionadded (mL) Conc. HCL,Conc. HNO3added Totalvolume (mL) Conc. ofNi, ppm Conc. ofCu, ppm7 5 10 2 drops each 50 10 1008 10 10 2 drops each 50 20 1009 15 10 2 drops each 50 30 10010 20 10 2 drops each 50 40 10011 25 10 2 drops each 50 50 100Instrumental settings