Malaysian Journal of Analytical Sciences Vol 25 No 6 2021

  Articles 16 - 21 are selected papers from the "International Virtual Symposium on Environmental and Green Chemistry for Sustainable Development (EnvChem 2021), 9 June 2021; organized by the School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA Shah Alam, Selangor, Malaysia."

Guest Editor: Sabiha Hanim Saleh

1.    DETERMINATION OF SODIUM HYDROXIDE CONCENTRATION UNDER HETEROGENEOUS CONDITIONS FOR THE PREPARATION OF N-CARBOXYMETHYL CHITOSAN
(Penentuan Kepekatan Natrium Hidroksida dalam Keadaan Heterogen bagi Penghasilan N-Karboksimetil Kitosan)
Nurul Adilah Rodzali and Nadhratun Naiim Mobarak

| Abstract & References || Full Text: pdf ( 823 K ) |

2.    HEAVY METAL IN DIFFERENT SIZE FRACTIONS OF HOUSEHOLD DUST COLLECTED FROM RURAL RESIDENTIAL AREA OF SIMPANG RENGGAM, JOHOR
(Logam Berat dalam Pelbagai Pecahan Saiz Habuk Rumah dari Kawasan Kediaman Luar Bandar Simpang Renggam, Johor)
Joo Hui Tay, Siti Aqilah Azmi, Mohd Iffat Iqbal Zul Kornain

| Abstract & References || Full Text: pdf ( 469 K ) |

3.    SYNTHESIS AND CHARACTERIZATION OF 4-CHLOROPHENOXYACETIC ACID HERBICIDE INTERCALATED INTO CALCIUM-ALUMINIUM LAYERED DOUBLE HYDROXIDE THROUGH CO-PRECIPITATION METHOD
(Sintesis dan Pencirian Herbisid Asid 4-Klorofenoksiasetik Diinterkalatkan dengan Kalsium-Aluminium Hidroksida Dua Lapisan Melalui Kaedah Pemendakan Bersama)
Farah Liyana Bohari, Muhammad Alinsan Kamil Mukamil Hamzah, Sheikh Ahmad Izaddin Sheikh Mohd Ghazali, Nur Nadia Dzulkifli, Is Fatimah, Nurain Adam

| Abstract & References || Full Text: pdf ( 381 K ) |

4.    CONCENTRATION OF HEAVY METALS IN Perna veridis COLLECTED FROM STRAITS OF JOHOR, MALAYSIA
(Kepekatan Logam Berat di dalam Perna veridis yang Dikumpulkan dari Selat Johor, Malaysia)
Tee Lian Sheng, Poong Jun Han, Evonne Tan, Yip Tiam Hing, Muhammad Hasbi Ramli, Zaleha Kassim, Ong Meng Chuan

| Abstract & References || Full Text: pdf ( 355 K ) |

5.    CONJUGATION OF TERNATIN BIOMOLECULE WITH POLYETHYLENE GLYCOL ENHANCED CONJUGATES SOLUBILITY AND STABILITY: SYNTHESIS AND PHYSICOCHEMICAL CHARACTERISATION
(Konjugasi diantara Molekul Ternatin dan Polietilena Glikol dengan Penambahbaikan Sifat Keterlarutan dan Kestabilan: Sintesis dan Pencirian Fizikokimia)
Nurul Aina Jamaludin and Noor Faizah Che Harun

| Abstract & References || Full Text: pdf ( 327 K ) |

6.    PURIFICATION OF XANTHORRHIZOL AND SCREENING OF SELECTED MICROBES FOR ITS BIOTRANSFORMATION
(Penulenan Xantorizol dan Pengesanan Mikrob Terpilih untuk Biotransformasinya)
Nurul Iman Aminudin, Nadia Farhana Yahya, Zaima Azira Zainal Abidin, Deny Susanti, Muhammad Taher

| Abstract & References || Full Text: pdf ( 525 K ) |

7.    ISOLATION OF PTEROPODIC ACID FROM MALAYSIAN Uncaria lanosa VAR. ferrea BY USING LIQUID CHROMATOGRAPHY MASS SPECTROMETRY DEREPLICATION APPROACH
(Pemencilan Asid Pteropodik daripada Uncaria lanosa var. ferrea Malaysia dengan Pendekatan Direplikasi Kromatografi Cecair Spektrometri Jisim)
Nursyaza Husna Shaharuddin, Rohaya Ahmad, Fatimah Salim

| Abstract & References || Full Text: pdf ( 304 K ) |

8.    ADSORPTION OF ACID ORANGE 7 BY CETYLTRIMETHYL AMMONIUM BROMIDE MODIFIED OIL PALM LEAF POWDER
(Penjerapan Asid Oren 7 oleh Setiltrimetil Ammonium Bromida Ubahsuai Serbuk Daun Kelapa Sawit)
Nik Ahmad Nizam Nik Malek, Nurul Ain Sallehhuddin, Auni Afiqah Kamaru

| Abstract & References || Full Text: pdf ( 394 K ) |

9.    POTENTIAL OF Epipremnum aureum IN REDUCTION OF CHEMICAL OXYGEN DEMAND IN WASTEWATER
(Potensi Epipremnum aureum dalam Pengurangan Permintaan Oksigen Kimia dalam Air Sisa Buangan)
Lee Shi Qing, Rozidaini Mohd Ghazi, Marinah Muhammad

| Abstract & References || Full Text: pdf ( 343 K ) |

10.   CATALYTIC ACTIVITY STUDY OF SYNTHESISED POLYSTYRENE-SUPPORTED PALLADIUM(II)-HYDRAZONE (CH₃) AS CATALYST IN HECK REACTION
(Kajian Aktiviti Pemangkinan Paladium(II)-Hidrazon (CH₃) dengan Sokongan Polistirena Sebagai Pemangkin dalam Tindak Balas Heck)
Najwa Asilah M. Shamsuddin, Norul Azilah Abdul Rahman, Kumuthini Chandrasekaram, Yatimah Alias, Nur Rahimah Said

| Abstract & References || Full Text: pdf ( 531 K ) |

11.   ANALYSIS OF SUGAR CONTENT IN SELECTED CHILDREN'S HEALTH SUPPLEMENTS IN MALAYSIA
(Analisa Kandungan Gula dalam Suplemen Kesihatan Kanak-Kanak Terpilih yang Biasa didapati di Malaysia)
Siok-Yee Chan, Mazidatulakmam Miskam, Shangeetha Ganesan

| Abstract & References || Full Text: pdf ( 385 K ) |

12.   OPTIMIZATION OF DIFFERENT PARAMETERS IN THE SYNTHESIS OF BISPHENOL A IMPRINTED POLYMER VIA PRECIPITATION POLYMERIZATION FOR BISPHENOL A ADSORPTION
(Pengoptimuman Parameter yang Berbeza dalam Sintesis Polimer Tercetak Bisfenol A Melalui Pempolimeran Pemendakan bagi Penjerapan Bisfenol A)
Tan Nee Nee, Noorhidayah Ishak, Azalina Mohamed Nasir, Nur Zatul 'Iffah Zakaria, Nor Munirah Rohaizad

| Abstract & References || Full Text: pdf ( 720 K ) |

13.   CYTOTOXICITY EFFECT OF NATURAL AND SYNTHETIC GIRINIMBINES AND THEIR DERIVATIVES AGAINST HUMAN LUNG CANCER CELL LINES A549
(Kesan Sitotoksik Girinimbin Semula Jadi dan Sintetik dan Terbitannya Terhadap Sel Garis Kanser Paru-Paru Manusia A549)
Fatin Nurul Atiqah Osman, Siti Mariam Mohd Nor, Mohd Azlan Nafiah

| Abstract & References || Full Text: pdf ( 389 K ) |

14.   IDENTIFICATION AND QUANTIFICATION OF LYCOPENE AND β-CAROTENE IN WATERMELON JUICE USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY
(Pengenalan dan Pengkuantitian Likopena dan β-Karotena di dalam Jus Tembikai Menggunakan Kromatografi Cecair Berprestasi Tinggi)
Nur Shafinaz Mohamad Salin, Fatimah Salim, Hairil Rashmizal Abdul Razak, Wan Mazlina Md Saad

| Abstract & References || Full Text: pdf ( 293 K ) |

15.   OPTIMIZATION AND DETERMINATION OF INORGANIC ARSENIC BY LIQUID EXTRACTION AND INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY IN FOOD MATRIX
(Pengoptimuman dan Penentuan Arsenik Tak Organik Melalui Pengekstrakan Cecair dan Spektrometri Jisim-Plasma Gadingan Aruhan dalam Sampel Makanan)
Le Nhon-Duc, Nguyen Thanh-Nho, Le-Thi Anh-Dao, Nguyen Cong-Hau, Nguyen Van-Dong

| Abstract & References || Full Text: pdf ( 623 K ) |

16.   BIO-COAL OPTIMIZATION STUDY OF DRY LEAVES VIA LOW-TEMPERATURE MECHANISM
(Kajian Pengoptimuman Terhadap Bio-Arang Batu Mengunakan Daun Kering Melalui Mekanisme Suhu Rendah)
Siti Solehah Misni, Nor Hazelah Kasmuri, Fuzieah Subari, Zalizawati Abdullah, Suhaiza Hanim Hanipah

| Abstract & References || Full Text: pdf ( 584 K ) |

17.   CHALLENGES OF ALUM RECOVERY FROM DRINKING WATER TREATMENT SLUDGE USING ELECTROLYSIS METHOD
(Cabaran untuk Pemulihan Alum daripada Enapcemar Rawatan Air Minuman Melalui Kaedah Elektrolisis)
Rizkiy Amaliyah Barakwan and Yulinah Trihadiningrum

| Abstract & References || Full Text: pdf ( 438 K ) |

18.    MODELLING AND OPTIMIZATION OF MICROWAVE ASSISTED EXTRACTION OF TOTAL PHENOLICS IN KAKAWATE (Gliricidia sepium) AS PESTICIDE AGAINST BLACK BEAN APHIDS (Aphis fabae)
(Pemodelan dan Pengoptimuman Pengekstrakan Berbantu Gelombang Mikro bagi Jumlah Fenolik dalam Kakawate (Gliricidia sepium) sebagai Racun Makhluk Perosak Afid Kacang Hitam (Aphis fabae))
Rhonalyn V. Maulion, John Marco I. Matira, Kristine May M. Fanoga, Maricar C. Marasigan, Melissa Marie C. Dimaculangan

| Abstract & References || Full Text: pdf ( 728 K ) |

19.   OPTIMISATION OF MICROWAVE-ASSISTED WATER EXTRACTION OF PINEAPPLE PEEL HEMICELLULOSE USING RESPONSE SURFACE METHODOLOGY
(Pengoptimuman Pengekstrakan Air Berbantu Gelombang Mikro Bagi Hemiselulosa Kulit Nanas Menggunakan Kaedah Gerak Balas Permukaan)
Nur Aza Atiqah Mad Zahir, Noraini Hamzah, Hamizah Mohd Zaki, Shariff Ibrahim, Sabiha Hanim Saleh

| Abstract & References || Full Text: pdf ( 629 K ) |

20.   ESTIMATION OF CARBON DIOXIDE EMISSION IN THE TRANSPORTATION SECTOR ON PRIMARY ARTERIAL ROADS IN WONOKROMO DISTRICT, SURABAYA BEFORE AND AFTER COVID-19
(Anggaran Pelepasan Gas Karbon Dioksida Bagi Sektor Pengangkutan di Jalan Utama Daerah Wonokromo Kota Surabaya Sebelum dan Selepas Covid-19)
Fatimah Zahra, Agus Supriyanto, Nita Citrasari

| Abstract & References || Full Text: pdf ( 915 K ) |

21.   SYNTHESIS OF HYBRID CARBON QUANTUM DOTS FROM Tamarindus indica AND Mangifera indica LEAVES FOR THE DETECTION OF MERCURY (Hg²⁺) ION IN PURIFIED WATER AND SIMULATED SEAWATER
(Sintesis Titik Kuantum Karbon Hibrid dari Daun Tamarindus indica dan Mangifera indica bagi Pengesanan Ion Merkuri (Hg²⁺) dalam Sampel Air Tulen dan Simulasi Air Laut)
Rejie C. Magnaye, Riszel B. De Castro, Kenneth B. Gomez, Rex Gregor M. Laylo, Aljon Joseph G. Maderazo

| Abstract & References || Full Text: pdf ( 530 K ) |