and Collision Energy (CE) are stated in Table 1. The BA derivatives
exhibit intense protonated molecular ions [M+H]+ in MS spectra,
and [M+Na]+ is also observed. For the MS/MS spectra, the main
fragment ions from d0-MASC labeled BAs are at m/z 208 and m/z
224, and d3-MASC labeled BAs give fragment ions at m/z 211 and
m/z 227. The representative MS/MS of (d0-MASC)2-TRY and
(d3-MASC)2-TRY are shown in Fig. 2(A). As can be seen from
Fig. 2(A), the most abundant fragment at m/z 208 or m/z 211 is
10-methylacridone cation which can be expressed as [d0-MA]+ or
[d3-MA]+. And the MRM transitions of [M+H]+?[MA]+ were used
for quantification analysis in our experiments. In addition, the
whole HPLC–MS/MS run were divided into three segments.
Segment I is set to waste, avoiding high concentration of
10-methyl-acridone-2-sulfonyl acid (MASC-OH) contaminate ion
source. Segment II and III are set to source, acquiring MRM signals
of BAs derivatives
and Collision Energy (CE) are stated in Table 1. The BA derivativesexhibit intense protonated molecular ions [M+H]+ in MS spectra,and [M+Na]+ is also observed. For the MS/MS spectra, the mainfragment ions from d0-MASC labeled BAs are at m/z 208 and m/z224, and d3-MASC labeled BAs give fragment ions at m/z 211 andm/z 227. The representative MS/MS of (d0-MASC)2-TRY and(d3-MASC)2-TRY are shown in Fig. 2(A). As can be seen fromFig. 2(A), the most abundant fragment at m/z 208 or m/z 211 is10-methylacridone cation which can be expressed as [d0-MA]+ or[d3-MA]+. And the MRM transitions of [M+H]+?[MA]+ were usedfor quantification analysis in our experiments. In addition, thewhole HPLC–MS/MS run were divided into three segments.Segment I is set to waste, avoiding high concentration of10-methyl-acridone-2-sulfonyl acid (MASC-OH) contaminate ionsource. Segment II and III are set to source, acquiring MRM signalsof BAs derivatives
การแปล กรุณารอสักครู่..