Feigl, F. Spot Tests in Organic Applications 384 385 (Elsevier, New York, 1954).
Feigl, F., Spot Tests, 2 (Elsevier Pub. Co., New York, 1954).
Wasn't the theory something along the lines that SATs were "on the spot" tests?
Feigl, F., Spot Tests for Organic Compounds, fourth ed., 126 (Elsevier, 1956).
The contaminated milk was discovered by a government agency that ran spot tests on the milk on Saturday.
Some certifiers already do spot tests, he said, but many do not, testing only if they suspect a problem.
The Postal Service must also carry out spot tests of facilities and employees across the country, to boost both security and confidence.
A new flatbread did well in spot tests, but the chain killed it after rigorous experiments revealed it cannibalized other products.
SATs are designed to be "on the spot" tests - despite the fact that many schools try to prepare children for them.
Semi-quantitative urine screening assays using cationic dyes on filter paper (e.g., spot tests) have relatively high rates of false-positives and false-negatives and are obsolete.
A few years ago, Wawa, the convenience store chain in the mid-Atlantic United States, wanted to introduce a flatbread breakfast item that had done well in spot tests.
