Clinical Chemistry, Vol 22, 687-687, Copyright © 1976 by the American Association for Clinical Chemistry

Corrections

Volume 21

p 1668: In Figure 2, as shown, R₂ and C₂ are connected to the ac side of the bridge rectifier. The correct schematic would show the upper end of R₂ connected to the anode of the SCR and the lower end of C₂ to the cathode of the SCR.

p 1905: Figures corresponding to legends for Figures 3A and 3B are reversed, i.e., 3A is a negative sample, 3B a positive sample.

Volume 22

p 102: In both Tables 1 and 2, headings "630 nm" and "410 nm" should be reversed; caption under Fig. 1 should end "...solution No. 2."

p 156: Tenth line of last paragraph: change "100 ml" to "100 mol."

p 219, Table 1, fourth item in fourth column: "±68.8" should read "±8.8".

p 264, column 1: Source of p-HBAH is Aldrich Chemical Co., Milwaukee, Wis. 53233 (cat. No. H2,010-5).

p 273, under Reagents: "ferric nitrate (68.5 g/liter)" should read "mercuric nitrate (68.5 g/liter)"; "mercuric nitrate (202 g/liter)" should read "ferric nitrate (202 g/liter)." In Figure 1 (p 274), 620 µg, 530 µg, and 440 µg should be changed to 62 mg, 53 mg, and 44 mg.

p 344: under Specificity, "1.0 mg/liter" should read "100 mg/liter."

p 379: under Procainamide assay, sentence should be changed to read "Place the containers in an ice bath, add 2.0 ml of hydrochloric acid and 1.0 ml of sodium nitrite, mix the contents...."