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比保留体积
[分化] specific retention volume
- 比保留体积随交换度变化的曲线在交换度为32—41％处有极大值。
The curves of specific retention volume vs exchange ratio pass through a maximum when the exchange ratio is within 32-41%. - 例如，750v的体积要小于多数的黑莓设备（虽然比黑莓珍珠略大），但仍保留全套Qwerty键盘和五向导航板。
For example, the 750v is smaller than most BlackBerrys (though not the Pearl), but retains a full Qwerty keyboard and five-way navigation pad. - 采用三氟乙酸做为保留酸，氨水作为洗脱碱，溶剂系统为正己烷/乙酸乙酯/甲醇/水（体积比为9∶1∶5∶5）。
Trifluoroacetic acid (TFA) was used as the retaining acid and ammonia liquor as the eluent base. The solvent system was n-hexane-acetic ester-methanol-water (ratio by volume was 9 ∶1 ∶5 ∶5).
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