A PHOTOELECTRIC MICROCOLORIMETER
نویسندگان
چکیده
منابع مشابه
Clinical Studies of the Blood Volume. Iv. Adaptation of the Method to the Photoelectric Microcolorimeter.
In a previous communication (1) a method was described for determining the plasma volume by injecting intravenously an azo dye "Evans Blue" and measuring the dye concentration of undiluted serum samples with the spectrophotometer. The cost of the spectrophotometer and the specialized training required for its successful operation limit the applicability of the method to the study of clinical pr...
متن کاملA photoelectric sound-activated relay
cues and they often take precedence over intra-maze stimuli. One possible disadvantage of the present apparatus should be mentioned. A few Ss in the SOW group of each experiment were observed to strenuously oppose box withdrawal throughout training by wedging themselves into the corner between the fixed end wall and the moving floor and side walls. These Ss seldom avoided. Many other Ss display...
متن کاملA Photoelectric Densitometer for Use with Suspensions
A device for quickly and accurately measuring the population density of a suspension of microorganisms, permitting the preparation of yeast suspensions of known density to within 1 per cent error, was constructed with two Visitron photoelectric cells, a single light of high intensity and a good Wheatstone bridge for balancing the currents from the two photoelectric cells. A large Pyrex milk cul...
متن کاملConcerning Hertz’ photoelectric effect
Experimental evidence of the photoelectric effect goes back to H. Hertz. It occurred during the famous confirmation experiments of the Maxwellian theory. It is commonly held however that it cannot be explained in the framework of that theory. We are calling attention to some aspects linked with the interpretation of that effect on which, in our opinion, it is worth-
متن کاملAn evaluation of photoelectric haemoglobinometers.
A number of photoelectric haemoglobinometers have been evaluated as to their suitability for haemoglobinometry in the routine clinical laboratory. They have been tested for accuracy, precision, linearity of response, instrument comparability and, where relevant, for carry-over. The advantages and defects of each are described.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1937
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)74611-5