sample_id,method_A_mg_L,method_B_mg_L
sample_1,5.10,5.22
sample_2,10.20,10.28
sample_3,7.50,7.65
sample_4,12.30,12.40
sample_5,3.90,3.99
sample_6,8.80,8.93
sample_7,15.10,15.21
sample_8,6.40,6.47