Not, but we use another rule for magical items, we don't use the time modifier for additional magical capabilities (x2 second, x3 third...). I think is a very negative rule for magical item creation, is unbalanced on the other side (too restrictive). The time for alchemist players and time/price for buying the item is a waste that noone want, and in game really noone use multi-capabilities by their own, am I wrong?, I am sure that the unique items with multi-capabilities are the treasures items in your game, if I am correct, this demonstrate that I am saying.
So, if we look another games, usually magical items always have various magical capabilities, because is the usual way, a level 6 alchemist usually wants to create an item that have a bonus, one spell or another capability in his power capacity, but multipling the time required surelly throws him backwards to try it, so this is a total waste of alchemy abilities.
In addition to this, we must remember to use the time modifier depending on the magical capability (x0.5 charged, x0.125 1 single spell...) that are applied ONLY to spells involved on that capability, remember that common spells (working material for example) use the greater modifier of all.
And about your question, maybe there is one that is allowed, the single spell imbed, as is 1-use capability I don't see problem about recycling it (some like recharging it with a new one), is not comfortable but is the price for not making it daily or charged item.