Villarruz
10  Ergebnisse:
Personensuche X
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2

Determination of Ammonia by the Indophenol Method:

Rossum, John R. ; Villarruz, Primo A.
Journal (American Water Works Association).  55 (1963)  5 - p. 657-658 , 1963
 
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3

Suggested Methods for Determining Selenium in Water:

Rossum, John R. ; Villarruz, Primo A.
Journal (American Water Works Association).  54 (1962)  6 - p. 746-750 , 1962
 
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4

Suggested Method for Turbidimetric Determination of Sulfate..:

Rossum, John R. ; Villarruz, Primo A.
Journal (American Water Works Association).  53 (1961)  7 - p. 873-876 , 1961
 
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5

Suggested Method for Iodide Determination:

Rossum, John R. ; Villarruz, Primo A.
Journal (American Water Works Association).  52 (1960)  7 - p. 919-922 , 1960
 
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6

Study of Methods for the Determination of Nitrates:

Greenberg, Arnold E. ; Rossum, John R. ; Moskowitz, Nathan.
Journal (American Water Works Association).  50 (1958)  6 - p. 821-826 , 1958
 
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7

A New Method for Determining Methane in Water:

Rossum, J. R. ; Villarruz, P. A. ; Wade Jr., J. A.
Journal (American Water Works Association).  42 (1950)  4 - p. 413-415 , 1950
 
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8

IMPROVEMENTS IN THE SOAP SOLUTION METHOD FOR DETERMINING HA..:

Brown, K. W. ; Villarruz, P. A.
Journal (American Water Works Association).  30 (1938)  7 - p. 1021-1039 , 1938
 
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