At several of the other 12 nephelometer
locations, much smaller peaks were apparent in PM[sub.
Nephelometers have recently received more attention as turbidity is a water quality characteristic of interest to municipal water works, but without specific standards.
Also known as a turbidimeter, the nephelometer is an opto-electronic instrument that determines the turbidity of a liquid, or the quantity of suspended particles in a liquid.
inf] estimates from the indoor/outdoor nephelometer measurements, the indoor ([C.
Because nephelometer measurements were only valid at 8 of the 19 subjects' residences, a predictive model based on RM [F.
Exposure measurements included continuous PM using a passive nephelometer
carried by subjects; indoor, outdoor home, and central-site 24-hr gravimetric [PM.
We also adapted the nephelometric BC method described by Shephard and Whiting (17) to the Beckman Coulter Immage nephelometer
and determined its performance characteristics separately.
On collecting the nephelometer
after the 2-week measurement period, a questionnaire was given to each ICAP study participant to assess those home and behavioral characteristics that could potentially influence the indoor air quality.
All analyses were performed with a single batch of reagent on an automated rate nephelometer
(Immage[TM] analyzer; Beckman-Coulter Ltd.
IgG, IgA, IgM, al-antitrypsin, and haptoglobin were determined in clear serum samples, using three nephelometers
We studied the effect of changes in ferritin, percent saturation of TRF, UIBC, and TIBC on the ratio of TIBC measured colorimetrically to TRF measured on the more precise Beckman nephelometer
and found that there is about a 10% difference in the ratio between the lowest and highest values of the variables studied.
multicomponent chemistry analyzers and specialty analyzers, including analyte-specific analyzers, blood gas analyzers, nephelometers
, instruments dedicated to therapeutic drug monitoring (TDM), and instruments dedicated to protein or other immunoassays.