Would You Believe this steroid analysis 51EROI0Î DETtCIC*:
DUAL HYDROGEN
DETECTOR.
OUAt HYDROGEN
COLUMN;
»• . i / 4 " CLASS. 3%
COLUMN:
4· . 1/1· GLASS, 3% QF-ION IM/IM
CHiOMOSonw. *w. EJMCS TREATED, HIGH ««FQRMANCÎ CMMl*
GU
OMCSTREATED. H I G H '
PERFORMANCE
«L1UM, 1 0 0 c i / - i i ,
CARBIER CAS:
TEMHtATLWES: M1ECÎO» Î K *
HELIUM. 100 cc/min
1EMPKATURES: OET ECTOR Î7S· COLUMN ÎÎS*
SAMPLE SIZE,
! ul< 0.Î ug EACH )
SOLVENT:
1.10 CHLOHOFOtM .
ÏÏÏT" ,
Λ
Depending on component retention time in trace analysis, the solvent may interfere significantly with both quantitative and qualitative analysis. Note the marked improvement in solvent recovery when carbon disulfide was used as the primary sample carrier.
you wouldwithan
MT-220
^..Mere a l'uku
. . .
Free Steroids and their deriva tives can be detected at the 30 nanogram level. How is this possible? It's a snap analysis with the MT»220's all glass inlet to de tector geometry. The design features of the MT.220 are not the result of overnight decisions. Leading gas chromatographers from many user companies and government laboratories have contributed design concepts which have helped to establish the ΜΤ·220 as the leader in Pesticide or Biomedical analyses. But the engineering did not
stop with the prototype. Micro Tek has continued to expand the dimensions of G.C. technology by introducing the most sophis ticated electronics and the most advanced detector technology. Five NEW detectors that are state-of-the-art a d v a n c e m e n t s and available only from MT are the Ultrasonic, Series "Stacked" Flame, High Temperature Elec tron Capture, Phosphine Oven System, and the Flame Photo metric (FPD). For those inter ested in phospholipids, the FPD
permits routine analysis at the one nanogram level for volatile phospholipids and organo phos phate pesticides without special carrier or flame burner gas pu rification. The ΜΤ·220 is the first G.C. with an all solid state dual chan nel electrometer. Reliable field effect transistors are used in place of input tubes. Noise and drift are practically eliminated. Isn't it time you compared the unmatched standards of the MT.220? For further information, con tact your area sales engineer or write for the ΜΤ·220 12-page bulletin.
MICROTEK
INSTRUMENT CORP H O M E OFFICE: 6 5 0 0 Tracor Lane A u s t i n , Texas 7 8 7 2 1 512 W A 6-2800
Circle No. 163 on Readers' Service Card VOL. 39, NO. 2, FEBRUARY 1967
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27 A
