Tá an mhais-speictriméadracht ísealtaifigh (LRMS de réir taifeach aonaid maise) agus mais-speictriméadracht ardtaifigh (HRMS), lena n-áirítear e.g. Teascóga fócasaithe dúbailte, Am Eitilte (TOF) agus uirlisí Orbitrap iomchuí.
Both low-resolution mass spectrometry (LRMS, at unit mass resolution) and high-resolution mass spectrometry (HRMS), including e.g. double focusing sectors, Time of Flight (TOF) and Orbitrap instruments are appropriate.
Le modhanna den sórt sin, úsáidtear crómatagrafaíocht gháis in éineacht le mais-speictriméadracht ardtaifeach (GC-HRMS) nó crómatagrafaíocht gháis in éineacht le mais-speictriméadracht sraithe (GC-MS/MS).
Such methods utilise gas chromatography/high resolution mass spectrometry (GC-HRMS) or gas chromatography/tandem mass spectrometry (GC-MS/MS).
Chun sainaitheantas anailíte a dheimhniú i mais-speictriméadracht ardtaifigh (HRMS), beidh diallas maise na n-ian diagnóiseach go léir faoi bhun 5 ppm (nó i gcás m/z < 200 faoi bhun 1 mDa).
For confirmation of the identity of an analyte in high-resolution mass spectrometry (HRMS) the mass deviation of all diagnostic ions shall be below 5 ppm (or in case of m/z < 200 below 1 mDa).