With the purchase of the mouse IL-6 ELISA kit, how can the sample size and delivery time be more secure than the price?

There are 120 mouse serum samples in the pre-test stage, and a single box of 48T is often not enough if it is only a bottom test, because standard curves, blanks, controls, duplicate wells and quality control samples are deducted. It is more prudent to prioritize the purchase of 96T, even if only 40 to 60 samples are taken, the remaining plate space can be left for retesting, dilution linearity or subsequent formal experiments. If the budget is tight, you can only buy 96T for pre-test, and the formal experiment will continue to use the same batch number of the same brand to reduce the calibration difference; if you only do a small amount of conditional exploration, you can choose 48T, but you need to separate the samples in advance to avoid insufficient. After arrival, check the expiration date, cold shipping status, and timely disassemble the standard products according to the instructions. Do not wait until after the machine is loaded and disassembled.

The price comparison of the delivery period should not only look at whether it is in stock, but also distinguish between the manufacturer's spot, the dealer's local warehouse, the allocation of goods or customized production, and confirm the cold chain transportation cycle, the arrival status and the after-sales responsibility. The catch-up schedule can be pre-tested by buying a small specification or disassembling the board first, and then replenish the same batch number after the formal experiment; if the replenishment batch is different, at least re-do the standard curve, and cross-validate with a part of the repeated sample to avoid the result fault. Local dealers can usually shorten the wait, but verify the authorization, storage conditions and shipping temperature control. The purchase order is recommended to be arranged according to the earliest available, sample backup, and risk of the same batch number, rather than just the list price.