Arief Yandra Putra, Arief Yandra
Jurusan Kimia, Fakultas MIPA Universitas Andalas

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Determination of Benzoic Acid, Sodium Saccharin, And Caffeine By High Performance Liquid Chromatography Putra, Arief Yandra; Mairizki, Fitri; Suryani, Hamzar; Safni, Safni
Jurnal Litbang Industri Vol 2, No 2 (2012)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (98.21 KB) | DOI: 10.24960/jli.v2i2.603.79-86

Abstract

Concentrations of benzoic acid, sodium saccharin and caffeine in soft drink samples were determined by using Reverse Phase High Performance Liquid Chromatography (HPLC). The optimum analytical conditions of those three samples was methanol-phosphate buffer (1:7) as mobile phases, with pH 4.5 and flow rate 1.0 mL/min, column C18 (150x4.6 mm i.d.) as stationary phases at 400C with UV-Vis Spectrophotometer detection at 220 nm. The concentration level of those compounds observed was not beyond the maximum limit of SNI 01-011101995 for sodium saccharin and benzoic acid and SNI 01-6684-2002 for caffeine. The relative standard deviation based on retention time and peak area, as 0.37% and 0.59% for benzoic acid, 0.16% and 0.21% for sodium saccharin, 0.38% and 0.6% for caffeine. Finally, the recovery for benzoic acid, sodium saccharin and caffeine was 100.82%, 94.92% and 90.32%, respectively. The relative standard deviation and recovery of all samples met AOAC method requirements.ABSTRAKPenelitian tentang penentuan asam benzoat, natrium sakarin dan kafein telah dilakukansecara Kromatografi Cair Kinerja Tinggi (KCKT) Fasa Balik. Kondisi optimum analisis dariketiga senyawa di atas adalah fasa gerak metanol-bufer fosfat (1:7) dengan pH 4,5, laju alir 1 mL/min, kolom C18 (150 x 4,6 mm i.d.) dengan temperatur 40oC dan pendeteksiandengan Spektrofotometer UV/Vis pada panjang gelombang 220 nm. Metoda ini diaplikasikan pada beberapa sampel minuman ringan. Kadar ketiga senyawa ini di dalam sampel tidak melebihi batas maksimum yang diizinkan yaitu berdasarkan SNI 01-0222-1995 untuk natrium sakarin dan asam benzoat serta SNI 01-6684-2002 untuk kafein. Standar Deviasi Relatif ketiga senyawa ini berdasarkan waktu retensi dan luas puncak secara berturut-turut adalah; asam benzoat 0,37% dan 0,59%, natrium sakarin 0,16% dan 0,21%, kafein 0,38% dan 0,60%. Hasil perolehan kembali dari ketiga senyawa ini adalah asam benzoat 100,82%, natrium sakarin 94,92%, kafein 90,32%. Standar Deviasi Relatif dan perolehan kembali ketiga senyawa ini memenuhi persyaratan metoda AOAC.
PEMISAHAN BAHAN TAMBAHAN PANGAN MENGGUNAKAN METANOL-BUFFER FOSFAT DAN METANOL-BUFFER ASETAT Putra, Arief Yandra
Jurnal Katalisator Vol 2, No 2 (2017): KATALISATOR
Publisher : LLDIKTI Wilayah X

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.518 KB) | DOI: 10.22216/jk.v2i2.2537

Abstract

The development of food and beverage industry in Indonesia from year to year causes the production of food and soft drink circulating in community was increased. However, in food and soft drink were often added food additives such as sodium saccharin, benzoic acid, and caffeine that its level must be considered because it can caused negative effect on health. This study aims to compare optimum conditions of separation of sodium saccharin, benzoic acid and caffeine using methanol-phosphate buffer and methanol-acetate buffer as mobile phase using HPLC. The study was conducted by determining the wavelength, optimum pH of buffer and optimum composition of mobile phase. The optimum condition for the mobile phase of methanol-phosphate buffer were pH 4,5 with mobile phase composition of 12,5: 87,5 and UV detection system at 220 nm wavelength. The optimum condition for methanol-acetate buffer were pH 5,5 with mobile phase composition of 15:85 and the UV detection system at 230 nm wavelength. The composition of methanol-acetate buffer as mobile phase gives better result for the separation of sodium saccharin, benzoic acid and caffeine with shorter retention times. Perkembangan industri makanan dan minuman di Indonesia dari tahun ke tahun menyebabkan produksi makanan dan minuman ringan yang beredar di masyarakat semakin meningkat. Namun, di dalam makanan dan minuman ringan sering ditambahkan bahan tambahan pangan seperti natrium sakarin, asam benzoat, dan kafein yang kadarnya perlu diperhatikan karena dapat memberikan dampak negatif pada kesehatan. Penelitian ini bertujuan untuk membandingkan kondisi optimum pemisahan natrium sakarin, asam benzoat dan kafein menggunakan metanol-buffer fospat dan metanol-buffer asetat sebagai fasa gerak menggunakan HPLC. Penelitian dilakukan dengan menentukan panjang gelombang, pH buffer optimum dan komposisi fasa gerak optimum. Kondisi optimum untuk fasa gerak metanol-buffer fospat adalah pH 4,5 dengan komposisi fasa gerak 12,5:87,5 dan sistem pendeteksian UV pada panjang gelombang 220 nm. Kondisi optimum untuk fasa gerak metanol-buffer asetat adalah pH 5,5 dengan komposisi fasa gerak 15:85 dan sistem pendeteksian UV pada panjang gelombang 230 nm. Komposisi fasa gerak metanol-buffer asetat memberikan hasil yang lebih baik untuk pemisahan natrium sakarin, asam benzoat dan kafein dengan waktu retensi yang lebih pendek.
Analisis Warna, Derajat Keasaman dan Kadar Logam Besi Air Tanah Kecamatan Kubu Babussalam, Rokan Hilir, Riau Putra, Arief Yandra; Mairizki, Fitri
Jurnal Katalisator Vol 4, No 1 (2019): KATALISATOR
Publisher : LLDIKTI Wilayah X

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (690.046 KB) | DOI: 10.22216/jk.v4i1.4024

Abstract

Air tanah merupakan komponen dari suatu siklus hidrologi yang melibatkan banyak aspek bio-geo-fisik, bahkan aspek politik dan sosial budaya yang sangat menentukan keterdapatan air tanah di suatu daerah. Kualitas air tanah sangat penting artinya bagi kehidupan makhluk hidup. Kualitas air, yang mencakup keadaan fisik, kimia dan biologi dapat mempengaruhi ketersediaan air untuk kebutuhan manusia, pertanian, industri, dan pemanfaatan lainnya. Tujuan penelitian ini adalah untuk menganalisis kualitas air tanah di Kecamatan Kubu Babussalam, Kabupaten Rokan Hilir, Provinsi Riau yang ditinjau dari kualitas warna, pH dan kadar Fe. Pengambilan sampel menggunakan teknik random sampling. Sebagian besar sampel air tanah berwarna kuning kecoklatan dan 4 sampel air tanah memiliki pH dibawah batas minimum baku mutu berdasarkan  Permenkes 416/MEN.KES/PER/IX/1990. Hanya 4 sampel yang memiliki kadar Fe yang memenuhi baku mutu. pH terendah sampel air tanah sebesar 3,8  dan kadar Fe tertinggi sebesar 2.21 mg/LGroundwater is component of a hydrological cycle that involves many aspects of bio-geo-physical, even political and socio-cultural aspects that greatly determine the availability of groundwater in an area. The quality of groundwater is very important for the life of living things. Water quality, which includes physical, chemical and biological conditions can be affect the availability of water for human, agricultural, industrial and other uses. The aim of this study was to analyze the quality of groundwater in Kubu Babussalam District, Rokan Hilir Regency, Riau Province in terms of color quality, pH and Fe content. Sampling used random sampling technique. Most of the groundwater samples were brownish yellow and 4 groundwater samples had pH below the minimum quality standard based on Permenkes 416/MEN.KES/PER/IX/1990. Only 4 samples have Fe content that meets the quality standard. The lowest pH of groundwater sample was 3.8 and the highest Fe content was 2.21 mg / L.
Kajian Kualitas Air Tanah Ditinjau dari Parameter pH, Nilai COD dan BOD pada Desa Teluk Nilap Kecamatan Kubu Babussalam Rokan Hilir Provinsi Riau Putra, Arief Yandra; Yulia, Putri Ade Rahma
Jurnal Riset Kimia Vol 10, No 2 (2019): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v10i2.337

Abstract

Based on a preliminary study that has been carried out, Teluk Nilap Village, Kubu Babussalam District, Rokan Hilir was affected by the disposal of waste from oil company. The waste partly seeps into the residents' water sources which are used for domestic activities. It was because the location of the water sources close to the location of the waste oil disposal. The sampling technique in this study used the observation point technique (pumping test). Sampling refers to the point of waste oil flow (upstream, middle, downstream) and dug well water taken randomly (random sampling). The results showed pH values ranged from 2.8 to 6.6; BOD values range from 0.42 to 141.1 mg / L; COD values range from 20 to 291 mg / L. Ground water quality at some point in Teluk Nilap Village exceeded quality standard limits allowed and included in heavy pollution category.
Determination of Benzoic Acid, Sodium Saccharin, And Caffeine By High Performance Liquid Chromatography Putra, Arief Yandra; Mairizki, Fitri; Suryani, Hamzar; Safni, Safni
Jurnal Litbang Industri Vol 2, No 2 (2012)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (98.21 KB) | DOI: 10.24960/jli.v2i2.603.79-86

Abstract

Concentrations of benzoic acid, sodium saccharin and caffeine in soft drink samples were determined by using Reverse Phase High Performance Liquid Chromatography (HPLC). The optimum analytical conditions of those three samples was methanol-phosphate buffer (1:7) as mobile phases, with pH 4.5 and flow rate 1.0 mL/min, column C18 (150x4.6 mm i.d.) as stationary phases at 400C with UV-Vis Spectrophotometer detection at 220 nm. The concentration level of those compounds observed was not beyond the maximum limit of SNI 01-011101995 for sodium saccharin and benzoic acid and SNI 01-6684-2002 for caffeine. The relative standard deviation based on retention time and peak area, as 0.37% and 0.59% for benzoic acid, 0.16% and 0.21% for sodium saccharin, 0.38% and 0.6% for caffeine. Finally, the recovery for benzoic acid, sodium saccharin and caffeine was 100.82%, 94.92% and 90.32%, respectively. The relative standard deviation and recovery of all samples met AOAC method requirements.ABSTRAKPenelitian tentang penentuan asam benzoat, natrium sakarin dan kafein telah dilakukansecara Kromatografi Cair Kinerja Tinggi (KCKT) Fasa Balik. Kondisi optimum analisis dariketiga senyawa di atas adalah fasa gerak metanol-bufer fosfat (1:7) dengan pH 4,5, laju alir 1 mL/min, kolom C18 (150 x 4,6 mm i.d.) dengan temperatur 40oC dan pendeteksiandengan Spektrofotometer UV/Vis pada panjang gelombang 220 nm. Metoda ini diaplikasikan pada beberapa sampel minuman ringan. Kadar ketiga senyawa ini di dalam sampel tidak melebihi batas maksimum yang diizinkan yaitu berdasarkan SNI 01-0222-1995 untuk natrium sakarin dan asam benzoat serta SNI 01-6684-2002 untuk kafein. Standar Deviasi Relatif ketiga senyawa ini berdasarkan waktu retensi dan luas puncak secara berturut-turut adalah; asam benzoat 0,37% dan 0,59%, natrium sakarin 0,16% dan 0,21%, kafein 0,38% dan 0,60%. Hasil perolehan kembali dari ketiga senyawa ini adalah asam benzoat 100,82%, natrium sakarin 94,92%, kafein 90,32%. Standar Deviasi Relatif dan perolehan kembali ketiga senyawa ini memenuhi persyaratan metoda AOAC.