Technical Manual, 20th Edition: Methods and Appendices

Chloroquine diphosphate solution prepared by dissolving 20 g of chloroquine diphosphate in 100 mL of saline. Adjust to pH 5.1 with 1 N NaOH, and store at 2 to 8 C. Control red cells carrying a single-dose expression of antigens for which the test samples are to be phenotyped. ................
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