共 50 条
- [46] DIRECT DETECTION OF ORGANIC-COMPOUNDS IN WATER AT PARTS-PER-BILLION LEVELS USING A SIMPLE MEMBRANE PROBE AND A QUADRUPOLE ION TRAP BIOMEDICAL AND ENVIRONMENTAL MASS SPECTROMETRY, 1989, 18 (12): : 1063 - 1070
- [47] ELECTRON-CAPTURE DETECTION OF SULFUR GASES IN CARBON-DIOXIDE AT THE PARTS-PER-BILLION LEVEL JOURNAL OF CHROMATOGRAPHY, 1979, 171 (APR): : 305 - 312
- [49] BENZENE RISC - AN IMMUNOASSAY FOR DETECTING 500 PARTS-PER-BILLION BENZENE IN WATER JOURNAL OF CLINICAL LIGAND ASSAY, 1995, 18 (03): : 156 - 160