Page 40 - Performance Verification Statement for the Chelsea UV Aquatracka Fluorometer

Ref. No. [UMCES]CBL 2013-014
ACT VS12-01
Table 6. Chlorophyll results for laboratory duplicates and field duplicates of reference samples for the
two field test sites in Baltimore Harbor, site 2 in the Gulf of Mexico, and the Wave Tank experiments
performed at the Bedford Institute of Oceanography (BIO), Halifax, Nova Scotia. Samples were analyzed
at the Chesapeake Biological Laboratory, Solomons, MD.
Site
QA Sample
Type
# obs Mean (s.d.)
95% C.I.
Absolute
Precision
Average
Relative %
difference
Baltimore
Harbor
Field Blank 3 0.03 (0.02) 0.71 na
Lab Dup 31 16.6 (1.1) 0.15 10.9
Field Dup 7 13.4 (3.2) 0.45 31.7
Gulf of
Mexico
Field Blank 0 nd1 nd1 nd1
Lab Dup 30 0.83 (0.03) 0.07 5.3
Field Dup 5 0.84 (0.80) 0.11 7.9
BIO Wave
Tank
Field Blank 1 0.00 (0.00) na na
Lab Dup 34 0.51 (0.02) 0.07 5.3
Field Dup 5 0.50 (0.01) 0.08 5.5
nd1: no data; field trip blank was not collected during profiling
na: not applicable
Table 7. CDOM (a[400]) results for laboratory duplicates and field duplicates of reference samples for
the two field test sites in Baltimore Harbor, for site 2 in the Gulf of Mexico, and the Wave Tank
experiments performed at the Bedford Institute of Oceanography (BIO), Halifax, Nova Scotia. Samples
were analyzed at Moss Landing Marine Lab, Moss Landing, CA.
Site
QA Sample
Type
# obs Mean (s.d.)
95% C.I.
Absolute
Precision
Average
Relative %
difference
Baltimore
Harbor
Field Blank 3 0.05 (0.05) 1.8 na
Lab Dup 2 1.44 (0.04) 0.053 3.8
Field Dup 6 1.50 (0.05) 0.065 4.6
Gulf of
Mexico
Field Blank 0 nd1 nd1 nd1
Lab Dup 0 nd2 nd2 nd2
Field Dup 5 0.18 (0.04) 0.49 34.4
BIO Wave
Tank
Field Blank 1 0.08 (0.01) na na
Lab Dup 5 0.10 (0.07) 0.16 11.5
Field Dup 5 0.88 (0.04) 0.08 5.7
nd1: no data; field trip blank was not collected during profiling
nd2: no data; lab duplicates for CDOM were not collected during profiling
na: not applicable
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