title: Measurement of chloride concentration in microvolume samples of sweat.
abstract: Measuring sweat Cl concentration requires multiple steps. Following pilocarpine iontophoresis we compared Cl concentrations of sweat obtained on gauze pads to microvolumes (5 microL) collected into capillary tubes (N = 111). Chloride concentrations obtained by these two methods correlated significantly (r = 0.95; P < 0.001), indicating that Cl concentration can be measured accurately and easily on small volumes.
authors.affiliation: Nemours Children's Clinic, Jacksonville, FL 32247.
authors.forename: I
authors.initials: I
authors.lastname: Nathanson
authors.forename: M
authors.initials: M
authors.lastname: Tucker
authors.forename: L
authors.initials: L
authors.lastname: Jones
mesh_terms: D002713:Chlorine / Q000032:analysis*; D006801:Humans; D007478:Iontophoresis; D008832:Microchemistry; D010862:Pilocarpine; D013542:Sweat / Q000737:chemistry*
chemical_list: D010862:Pilocarpine; D002713:Chlorine