Saiful Azhar Saad
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Preferred name
Saiful Azhar Saad
Official Name
Saiful Azhar, Saad
Alternative Name
Saad, S. A.
Saad, Saiful Azhar
Main Affiliation
Scopus Author ID
36188475000
Researcher ID
G-1218-2013

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  • Publication
    Penggunaan kaedah Kolorimetri pembentukan kompleks kuprum-sabun dalam penentuan kandungan asid lemak bebas bagi minyak kelapa sawit
    ( 2005)
    Suhardy Daud
    ;
    Farizul Hafiz Kasim
    ;
    Saiful Azhar Saad
    ;
    Mustaffa Nawawf
    ;
    Kee Szi Loof
    Kandungan asid lemak bebas merupakan sa/ah satu aspek yang sangat penting dalam mengenalpasti kualiti sesuatu minyak kelapa sawit. Kaedah yang /azim digunakan bagi penentuan kandungan asid /emak bebas dalam minyak kelapa sawit ialah kaedah titratan dengan larutan natrium hidroksida. Bagaimanapun, kaedah ini memakan masa yang panjang dan sukar dilakukan. Melalui kajian ini, suatu kaedah kolorimetri yang ringkas dan cepat telah dibangunkan bagi menentukan kandungan asid /emak bebas dalam minyak kelapa sawit. Kaedah ini berdasarkan kepada pembentukan kompleks kuprum-sabun selepas asid-asid /emak bebas bertindak balas dengan /arutan kuprum asetat. Tiga sampel minyak kelapa sawit telah ditentukan kandungan asid /emak bebas mela/ui kaedah kolorimetri dan titratan. Bagi kaedah kolorimetri, kandungan asid lemak bebas dalam sampel-sampel tersebut ialah 1.93%, 0. 77% dan 0.16% wlw. Menggunakan kaedah titratan pula, kandungannya ialah 2.09%, 0. 73% dan 0.16% w/w. Hasil kajian menunjukkan kaedah kolorimetri sesuai digunakan bagi penentuan kandungan £!Sid lemak bebas dalam minyak kelapa sawit dengan /ebih mudah dan cepat berbanding kaedah titratan
  • Publication
    Detection of landfill odour using Quartz Crystal Microbalance (QCM)
    ( 2006)
    Saiful Azhar Saad
    ;
    Mohd Noor Ahmad
    ;
    Suhardy Daud
    ;
    Farizul Hafiz Kasim
    ;
    Mohd Nazry Salleh
    Odour is considered as the main environmental pollution agent in Malaysia. Even though the standard permissible level for odour in Malaysia has not been set yet as for air and water, malodour is considered as one of the main polluting agents, since the people has started to be concerned about the malodour. Conventionally, the odour was detected by the olfactometer, which used human as its panel for smell. But the human panels are unable to produce a consistance result, especially for the continous monitoring. In this study, the Quartz Crystal Microbalance (QCM) was used as an odour detector. The QCM is basically a mass sensitive device with the ability to measure a very small change on a quartz crystal resonator in real time. This system basically comprises of an array of sensors as well as data acquisition and components analysis. A Principle Component Analysis (PCA) is used to define three distinct regions, according to the time of the samples being taken and hence allow the landfill odour differentiation.