Traceability and Quality Control in Traditional Chinese Medicine: From Chemical Fingerprint to Two-Dimensional Barcode

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left">Sample</td><td align="center">Step 1<br/>bytes/points</td><td align="center">Step 2<br/>bytes/points</td><td align="center">Step 3<br/>bytes/points</td><td align="center">Compression  ratio</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">YinYangHuo</td><td align="center">277508/9001</td><td align="center">57311/8320</td><td align="center">1228/185</td><td align="center">0.44%/2.05%</td></tr><tr><td align="left">Roucongrong</td><td align="center">306359/9751</td><td align="center">16581/2481</td><td align="center">713/110</td><td align="center">0.23%/1.12%</td></tr><tr><td align="left">MUDANPI</td><td align="center">359105/11250</td><td align="center">53758/7328</td><td align="center">2108/291</td><td align="center">0.58%/2.58%</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td>Step 1: download raw data from liquid chromatograph; step 2: remove negative data; step 3: find inflexion points and keep one decimal fraction of time data, remove duplicate time data, and redundant no-absorbance data.<br/></td></tr></table>

Changes of length of string and data points during data filtering process.

Evidence-Based Complementary and Alternative Medicine

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Table 2: Traceability and Quality Control in Traditional Chinese Medicine: From Chemical Fingerprint to Two-Dimensional Barcode 