No abstract

Purpose Green sukuk is a tool to finance climate change which has garnered considerable attention. However, having only recently come into existence has its own set of challenges for this tool that require immediate identification and government intervention to intensify its growth. This study aims to explore the challenges encountered by green sukuk issuers and the structure of a reconciled green sukuk issuance framework to speed up the market’s growth with the right interventions. Design/methodology/approach The study engaged a qualitative approach via multiple case study interviews with green sukuk issuers and used expert views for data triangulation to generate the findings. A total of four green sukuk issuers participated in the interviews, and for data triangulation purposes, four expert’s opinions and views were considered. The thematic analysis technique is used to report the findings. Findings It was revealed that amongst the challenges encountered in the green sukuk market are shoddy green taxonomy, difficulty in identifying green assets, it is time-consuming and costly, no compelling benefits and exposure to higher-risk profiles. Research limitations/implications This study may be influenced by observer error and observer bias. However, the researchers have taken cautious steps to overcome these issues by following strict case study methodology procedures and triangulating the qualitative research findings with views from green sukuk experts. These interventions increased the rigour and trustworthiness of the results. Originality/value This study is amongst the pioneer in Malaysia, exploring challenges in the green sukuk market. The results are relevant to governments, regulators, institutions and central banks to structure the right interventions to counter the challenges. Greater government involvement is required to strengthen the green sukuk market and to spearhead the green agenda.

Electrochemical preconcentration of trace metals on a graphite cup for multielement determination by inductively coupled plasma-atomic emission spectrometry (ICP-AES) is described, where controlled potential electrolysis of trace metals in an electrolyte solution similar to seawater has been examined by the use of a newly designed Teflon® cell to allow cathodic deposition. The characteristic of the present system is to make deposition of trace metals only inside a graphite cup, which is inserted into the plasma for the analysis by ICP-AES with the use of a computer-controlled graphite-cup direct-insertion technique. The electrolysis parameters and the solution circulation rates during electrolysis and washing of deposit have been optimized by a univariate search method. With the present experimental system, it is possible to preconcentrate trace metals by a factor of 30 to 300, and to separate them from the major matrix consituents, such as NaCl, KCl, and MgCl2, in artificial seawater. The detection limits for Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn at the pg/mL level can be obtained with relative standard deviation of 2 to 11%.

The present work was employing the Quality by Design approach for the development and validation of a LC-MS-MS method to support the clinical advancement in determination of sildenafil in human plasma using lorazepam as an internal standard. Sample preparation involved solid phase extraction and calibration range observed between 3 and 1,700 ng/mL. The method was systematically optimized by employing Box-Behnken design and used mobile phase flow rate, pH and composition of mobile phase as the critical factors, and assessing the design for retention time and peak area as the responses. A substantial decrease in the variability associated with the method variables was shown in optimization studies and confirmed enhanced method robustness. The present studies revealed that developed method achieves all the regulatory requirements for linearity, accuracy, precision, selectivity, sensitivity and stability for the determination of sildenafil in human plasma. There was not any significant change in the stability of the drug shown by stability studies, performed in human plasma through freeze-thaw cycles, bench-top stability, short-term stability, long-term stability and auto sampler stability. In short, this method shows satisfactory results for the analysis of sildenafil in human plasma and possesses high degree of utility in pharmacokinetic and bioequivalence studies.

Inte rnat iona l Jour nal of En vir on me nt an d Su sta ina ble De ve lo pm en t

No abstract

No abstract

No abstract