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alfalfa

Pb, ash analysis of heavy metals

 value                  literature
----------------------------------
    1.00 ppm                 1
    1.00 ppm                 1
    2.00 ppm                 1
    4.00 ppm                 1
    4.00 ppm                 1
----------------------------------
count                        5
average                   2.40 ppm
standard deviation        1.36 ppm(57 %)

TU
UNIVERSITY OF TECHNOLOGY VIENNA
Institute of Chemical Engineering, Fuel and Environmental Technology
Getreidemarkt 9/159
A-1060 Vienna
Austria