Application- Development and validation of an HPLC method for the determination of vancomycin in human plasma and its comparison with an immunoassay (PETINIA).: This study developed and validated an HPLC method using 70% perchloric acid for the determination of vancomycin in human plasma, highlighting its application in analytical chemistry for therapeutic drug monitoring (Usman and Hempel, 2016).
- Determination of sunscreen agents in cosmetic products by reversed-phase high performance liquid chromatography.: The research utilized 70% perchloric acid in the sample preparation process, demonstrating its efficacy in the analysis of cosmetic products for regulatory and quality control purposes (Yao et al., 1998).
- Colorimetric determination of hydroxyurea in human serum using high-performance liquid chromatography.: This article describes a colorimetric method involving 70% perchloric acid for sample preparation, which is crucial in clinical chemistry for monitoring hydroxyurea levels in patients (Manouilov et al., 1998).
- Application of biological samples treated by wet-digested mineralization to cation-exchange high-performance liquid chromatography with post-column reaction by 4-(2-pyridylazo)-resorcinol.: This study details the use of 70% perchloric acid in the mineralization of biological samples, essential for accurate trace metal analysis in biological research (Sudo et al., 1991).
- Colorimetric micromethods for glutaraldehyde determination by means of phenol and sulfuric acid or phenol and perchloric acid.: The research presents a micromethod utilizing 70% perchloric acid for the colorimetric determination of glutaraldehyde, applicable in biochemical and industrial laboratories for safety and quality assessments (Boratynski and Zal, 1990).
Analysis NoteAssay (acidimetric): 70.0 - 72.0 %
Color: ≤ 10 Hazen
Chlorate (ClO₃): ≤ 10 ppm
Chloride (Cl): ≤ 3 ppm
Free chlorine: ≤ 0.5 ppm
Phosphate and Silicate (as SiO₂): ≤ 5 ppm
Sulfate (SO₄): ≤ 10 ppm
Total nitrogen (N): ≤ 10 ppm
Heavy metals (as Pb): ≤ 1 ppm
Ag (Silver): ≤ 0.1 ppm
Al (Aluminium): ≤ 0.05 ppm
As (Arsenic): ≤ 0.05 ppm
Ba (Barium): ≤ 0.02 ppm
Be (Beryllium): ≤ 0.02 ppm
Bi (Bismuth): ≤ 0.1 ppm
Ca (Calcium): ≤ 0.5 ppm
Cd (Cadmium): ≤ 0.05 ppm
Co (Cobalt): ≤ 0.05 ppm
Cu (Copper): ≤ 0.1 ppm
Fe (Iron): ≤ 1.0 ppm
Ge (Germanium): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.005 ppm
K (Potassium): ≤ 0.1 ppm
Li (Lithium): ≤ 0.02 ppm
Mg (Magnesium): ≤ 0.5 ppm
Mn (Manganese): ≤ 0.02 ppm
Mo (Molybdenum): ≤ 0.05 ppm
Na (Sodium): ≤ 0.5 ppm
Ni (Nickel): ≤ 0.1 ppm
Pb (Lead): ≤ 0.05 ppm
Sr (Strontium): ≤ 0.02 ppm
Ti (Titanium): ≤ 0.1 ppm
Tl (Thallium): ≤ 0.05 ppm
V (Vanadium): ≤ 0.05 ppm
Zn (Zinc): ≤ 0.1 ppm
Zr (Zirconium): ≤ 0.1 ppm
Residue on ignition (as sulfate): ≤ 30 ppm
Identity: passes test
Density (d 20/20): approx. 1.7
Conform to ACS, ISO, Reag.Ph Eur.
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