Check the listing for details. AB MDS Sciex QStar Mass Spectrometer Software. Condition: Used. Listed at 295.00 USD. Original set of Applied Biosystems MDS Sciex QStar Mass Spectrometer Software. Had formerly been used with a Qstar XL MS system. Included: Applied Biosystems MDS Sciex Qstar XL Installation File Disk Applied Biosystems MDS Sciex Pro ID Software V1.0 Applied Biosystems MDS Sciex Pro ICAT Software V1.