Answer 8.1

8.1

=> fil kkf

...

=> s (high pressure or hochdruck)(w)(fluessigchromatograph? or liquid
chromatograph?) or hplc or hochdruckfluessigchromatograph?
          8623 HIGH
          2539 PRESSURE
           585 HIGH PRESSURE
                 (HIGH(W)PRESSURE)
           861 HOCHDRUCK
           882 FLUESSIGCHROMATOGRAPH?
          5481 LIQUID
          6982 CHROMATOGRAPH?
           283 LIQUID CHROMATOGRAPH?
                 (LIQUID(W)CHROMATOGRAPH?)
            23 (HIGH PRESSURE OR HOCHDRUCK)(W)(FLUESSIGCHROMATOGRAPH? OR 
               LIQUID CHROMATOGRAPH?)
           416 HPLC
            17 HOCHDRUCKFLUESSIGCHROMATOGRAPH?
L1         444 (HIGH PRESSURE OR HOCHDRUCK)(W)(FLUESSIGCHROMATOGRAPH? OR 
               LIQUID CHROMATOGRAPH?) OR HPLC OR HOCHDRUCKFLUESSIGCHROMAT
               OGRAPH?

=> d bib ab