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Assistance for electrode clean in atomic absorption 280Z AA

Question asked by bala on Jun 23, 2020

Good morning

        
                Hi friends, I changed new graphite
And did tube cleaning but still I have a absorbance problem in 280ZAA machine. If y don't my can you tell me how to clean the electrodes , if you have any data and service manual  about cleaning the electrodes please send it to me.
Thanks

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