After the injection, the patient's breast is placed between the detectors.

It is an intermediate in the preparation of sodium borohydride and is a popular reagent in organic chemistry.

Purity standards for reagents are set by organizations such as ASTM International or the American Chemical Society.

An especially pronounced problem in this regard is the lack of reagents to test blood products for AIDS.

That means there's no waiting for chemical reactions to take place, no need to use reagents that can run out and no need to be an expert to get actionable information.

While other materials can be used, most models use a fluorescence based substrate because it is very easy to detect, even at the single molecule limit.

That means there's no waiting for chemical reactions to take place, no need to use reagents that can run out and no need to be an expert to get actionable information.

Second, access to research tools there should be materials necessary to replicate funded research cell lines, model animals, DNA tools, reagents, and more should be described in digital formats, made available under standard terms of use or contracts, with infrastructure or resources to fulfill requests to qualified scientists, and with full credit provided to the scientist who created the tools.