{"conc_mgL":2,"ext":0.202}
{"conc_mgL":4,"ext":0.399}
{"conc_mgL":6,"ext":0.588}
{"conc_mgL":8,"ext":0.796}
{"conc_mgL":10,"ext":0.997}
{"conc_mgL":12,"ext":1.174}
{"conc_mgL":14,"ext":1.377}
{"conc_mgL":16,"ext":1.534}
{"conc_mgL":18,"ext":1.622}
{"conc_mgL":20,"ext":1.654}