With $19 million of Series A venture capital in its pocket as of last week, and a former Perkin-Elmer executive at its head, separations start-up Protein Forest is hoping to replace the use of 2D gels in pharma’s and biotech’s proteomics core laboratories with its miniaturized ProteomeChip, set for launch in Q4 2004. The Watertown, Mass.-based company closed the $19 million series last week, with four firms — S.R. One, Boston Millennia Partners, IDG Ventures, and Novo A/S — leading the charge.