An all-glass closed-system soil percolation apparatus for gas and liquid

Precision of an automated all-glass capi

Precision of an automated all-glass capillary gas chromatography system with an electron capture detector for the trace analysis of estrogens

✍ Kern, H. ;Brander, B. 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 556 KB

## Abstract Subnanogram detection of steroids has become increasingly important today. One applicable method for gas chromatographic determination of subnanogram quantities of estrogens as halogenated derivatives is electron capture detection. HFB‐derivatives of 7 different estrogens were automatic