how to remove "reject check" from calibration curve?


1. we obtained Al calibration curve but noticed one of the calibration points was removed by reject selection. And also  two gree dots were observed too. 

2. we trie to include this point into the calibration curve by checking out " reject", but we could not find where to do? 

why was this reject selected automatically by the instrument? what factor triggered it? 

3. why did two green dots appear? 

Thank you

best regards 

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