In the 1960s, he utilized magnetic resonance imaging to pursue a fundamental study of the behavior and motion of defects and impurities in solids, an effort that culminated in his 1972 book, "Point Defects and Diffusion", still the definitive source in this field.
"We attempt to debunk the myths of anorexia by couching its intricacies and impurities in pretty language that describes a graceful kind of suffering, a spiritual kind," she writes.
However it also highlighted problems maintaining the heating system, as electronic controls failed from time-to-time, and impurities in the mine water meant a better filter system was needed.
Current designs for graphene transistors were limited by irregularities and impurities in graphene sheets.
Researchers needed to understand how surface effects and impurities in silicon affected the lifetime.
An alternative separation, the Betts process, involves electrolytic refining of lead bullion (containing bismuth and other impurities) in a solution of lead fluosilicate and free fluosilicic acid, bismuth being recovered from the anode sludge.
The mobile phase composition that provided an acceptable nitrendipine resolution, in large excess and possible impurities, in a short elution time, is methanol:water (70 30) and pH 3. Linearity (r≥0.999), reproducibility (RS D=0.8 1.4), determination limit (0.5–2%) andetermination9.8–102.3) were valimited and found to be satisfactory.
The standard contains 0.01 mg/mL of amiodarone, and USP specified impurities D and E with a resolution requirement of NLT 3.5 between peaks D and E. Impurities in a 5 mg/mL sample are quantitated against the standard.
Buonocore et al. presented results on the ground-state binding energies for donor and acceptor impurities in a deformed quantum well wire (QWW) [6].
A fast and selective capillary electrophoresis method has been developed for the simultaneous determination of the antihypertensive drugs captopril and hydrochlorothiazide and their related impurities in a combined dosage form.
The steel industry is the largest consumer of pure oxygen in "blowing" high carbon steel that is, volatilizing carbon dioxide and other nonmetal impurities in a more rapid and more easily controlled process than if air were used.
