. . . . "tube" . " 2 M NaAcetate " . "Add 0.5 ml 2 M NaAcetate (pH 4.0) to the tube, vortex 1 min at room temperature." . . . . . "2021-01-26T22:31:34.275769"^^ . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCEOtYac15zsWN/LAu3q7YFdW0UZNfX3BAarHW/LB1DHGcz0yYr0v7hKGbnCLJ+UkDfu3Mgj7BnCm1s8ulMULKfF4YjqS2YKHYZjNKVaIjSigFOpjOwIx99+qPlvd5CuG+Gia/sJA05jy2bPKLwb/kmVeeX0zORZudWLyRMLXp8UQIDAQAB" . "BQYDsm2qMeLDEpBqyIEv6i7XSmTu43DZMkIgPhCQZ85Qvt3xq3aG+rIr5SG3YJuhwWF2xg64jKgZ2nB8itmnOyuIa8/HnEgDVL/lIo1HI/dQ8B5Q1GLQSORTPjJHR8Jk1dQAqeFSB7d+8kqeMY6RhA2WEYTHajkvIWxQ043Gbos=" . . . "2021-01-26T22:31:34.275769"^^ . .