| 摘要 |
Composition (A) comprises specific cationic compound (I) and at least one proton donor (II). Composition (A) comprises specific cationic compound of formula (I) and at least one proton donor (II). Y+>R1R2R3R4 X-> (I) Y : nitrogen or phosphorus; R1-R4linear or branched 1-20C alkyl, 6-20C aryl or 6-26C aralkyl; and X : anion of a mono- or poly-basic (in)organic acid. Independent claims are also included for the following: (a) method for preparing (A); (b) diagnostic composition, and kit for stabilizing nucleic acid (NA), containing (A); and (c) mixture of NA-containing biological sample, (A) and optionally other auxiliaries. |
