List of Articles Simultaneous determination Open Access Article Abstract Page Full-Text 1 - Simultaneous spectrophotometric determination of lead, copper and nickel using xylenol orange by partial least squares Jahan B. Ghasemi Samira Kariminia Open Access Article Abstract Page Full-Text 2 - Application of Continuous Wavelet Transform Coupled with Zero-crossing Technique for the Simultaneous Spectrophotometric Determination of Sacubitril and Valsartan in Tablet Dosage Form Mitra Tohidi Majid Ramezani Ali Mehramizi 10.22034/jchr.2019.669349