共 4 条
[2]
AN ALKALINE SOLUTION OF POTASSIUM CHROMATE AS A TRANSMITTANCY STANDARD IN THE ULTRAVIOLET
[J].
JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS,
1952, 48 (06)
:414-423
[3]
EXTINCTION COEFFICIENTS OF SPECTROPHOTOMETRIC STANDARDS - AS DETERMINED WITH THE BECKMAN SPECTROPHOTOMETER
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION,
1945, 17 (04)
:235-237
[4]
1950, BRIT PHOTOELECTRIC S, V3