A Novel Molecularly Imprinted Polymer for the Selective Removal of Chlorophyll from Heavily Pigmented Green Plant Extracts prior to Instrumental Analysis
Table 1
A Comparison of selectivity of various adsorbents in specifically binding chlorophyll and/or pesticides at optimized conditions.
Analyte/interferent
% bound to MIP
% bound to GCB
% bound to NIP
Chlorophyll (spinach extract)
99.86 (0.72)
99.92 (1.01)
2.96 (0.19)
Chlorophyll (Nymphaea lotus extract)
99.90 (0.64)
99.95 (0.83)
3.66 (0.09)
Chlorophyll (Acalypha villicaulis extract)
99.86 (0.97)
99.88 (1.06)
2.42 (0.04)
HCB
nq
90.41 (1.67)
3.61 (0.28)
DDE
nq
89.97 (0.93)
3.44 (0.01)
DDD
nq
91.28 (1.38)
3.29 (0.14)
Mixture
Chlorophyll
99.79 (1.03)
88.94 (0.73)
3.22 (0.36)
HCB
nq
94.52 (1.84)
3.49 (0.92)
DDE
nq
90.26 (1.51)
2.79 (0.02)
DDD
nq
93.08 (1.96)
3.58 (0.16)
Values in parenthesis are % RSD, and nq is for not quantifiable.
