Lateral-flow and colorimetric approaches: the specificity problem — setting out what I have, and where I think it stops being reliable.
Lateral-flow and colorimetric approaches, and specifically the version of it that the documentation does not cover. The maintained page handles the general case well and stops exactly where my question starts.
Setting out the gap in case it is a gap in the page rather than a gap in what is known.
Appreciated. The plain phrasing does more work here than a longer post would.
Colorimetric tests: colour intensity correlates with concentration, but the relationship is non-linear at extremes and the correlation depends on the exact conditions (pH, temperature, timing). Reading the colour visually introduces subjectivity.
That has held every time I have looked, which is not the same as always.
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A comparison of home results against a laboratory result on the same vial — does this still hold?
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Second pass at: Cost versus information: making the trade-off explicitly
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Reading a home test result without over-claiming — what changed since
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Reflectance and photometric devices: precision in practice — a second dataset
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What consumer-accessible tests can and cannot determine — a second dataset
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+117 | 131 | 45k | 10h |
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Reflectance and photometric devices: precision in practice
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Payment mechanics and the recovery options that do not exist — what changed since
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Why quantitation is the hard part, not detection
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What a stability-indicating method is and how you demonstrate one
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