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Which of these is not an anion exchanger?

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+2 votes
in Enzyme Technology by (55.0k points)
Which of these is not an anion exchanger?

(a) Diethylaminoethyl (DEAE)

(b) Quaternary aminoethyl (QAE)

(c) Sulphopropyl (SP)

(d) Quaternary ammonium (Q)

The question was asked in a national level competition.

The above asked question is from Enzymes Purification topic in division Enzymes Purification of Enzyme Technology

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Best answer
Correct choice is (c) Sulphopropyl (SP)

To explain: Anion exchangers are positively charged exchangers which have negatively charged counter ions (anions) available for exchange. Diethylaminoethyl (DEAE), quaternary aminoethyl (QAE) and quaternary ammonium (Q) are anion exchangers. Sulphopropyl (SP) is a cation exchanger.

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