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. 2018 Feb 20;2018:9624327. doi: 10.1155/2018/9624327

Figure 3.

Figure 3

Comparison of theoretical plate numbers and peak asymmetry obtained on XB-C18 column for 20% of acetonitrile and 30% of methanol: (A) acetonitrile and 10 mM water solution of ammonium acetate adjusted to pH 4 with acetic acid; (B) acetonitrile and 10 mM water solution of ammonium formate adjusted to pH 4 with formic acid; (C) methanol and 10 mM water solution of ammonium acetate adjusted to pH 3 with acetic acid; (D) methanol and 10 mM water solution of ammonium acetate adjusted to pH 4 with acetic acid.