Retrospective study of interests and abilities that predict life goals and sex-role attitudes of college women.
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Achievement↗
Biomedical subjects
D M Zuckerman
Publications and source records attributed to D M Zuckerman.
Zinc protoporphyrin level in blood determined by a portable hematofluorometer: a screening device for lead poisoning.
An inexpensive portable fluorometer has been designed which can be used to determine the concentration of zinc protoporphyrin (ZPP) in a drop of unprocessed blood deposited on a disposable glass slide. No volume measurement of the blood sample need be made. The instrument displays the ZPP level in micrograms per deciliter of blood accurately and reproducibly, automatically calibrating each determination by comparing the blood fluorescence with that of a stable dye. The instrument, which we call a hematofluorometer, is ideally suited for use in primary screening for childhood and occupational lead intoxication. It can be used by public health personnel after a few minutes of instruction. Comparisons of ZPP levels obtained with the use of the hematofluorometer with erythrocyte protoporphyrin levels obtained using accepted extraction methods are presented.
Adult↗
The hematofluorometer.
A portable filter fluorometer, the hematofluorometer--which utilizes "front face" optics, internal standards, and digital computation capabilities--has been specifically designed for the rapid (approximately 5 s) assay of erythrocyte zinc protoporphyrin in unprocessed blood. A small (unmeasured) drop of blood, such as is obtained from a finger puncture, is placed on disposable cover slip and inserted in the sample holder of the instrument. The operator pushes the holder of the instrument. The operator pushes the holder, which also holds the permanent blank and standard, into the instrument. Zinc protoporphyrin concentration is automatically and instantaneously computed and the value is displayed on a digital readout as micrograms of zinc protoporphyrin per deciliter of blood for some standard hematocrit. No calibration adjustment need be performed by the operator. The hematofluorometer is designed for "field" use as well as for laboratory assays.
Erythrocytes↗