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. 2021 Jul 14;21:199. doi: 10.1186/s12906-021-03368-1

Table 1.

MS/MS parameters for the detection of bile acids

Bile acids Precursor Ion Product Ion Frag (V) CE (V) Polarity
Glycin-conjugated CA 464 74 100 70 Negative
Glycin-conjugated CDCA/UDCA/DCA 448 74 220 70 Negative
Taurin-conjugated CA 514 80 320 90 Negative

Taurin-conjugated

CDCA/UDCA/DCA

498 80 125 80 Negative
Unconjugated CA 407 407 300 5 Negative

Unconjugated

CDCA/UDCA/DCA

391 391 280 5 Negative

CA Cholic acid; CDCA Chenodeoxycholic acid; UDCA Ursodeoxycholic acid; DCA Deoxycholic acid