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All Journal SPIN: Jurnal Kimia & Pendidikan Kimia BAJU: Journal of Fashion and Textile Design Unesa Jurnal Tekstil: Jurnal Keilmuan dan Aplikasi Bidang Tekstil dan Manajemen lndustri
Nisa, Atina Khoiron
Unknown Affiliation
Humanities Chemistry Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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THE DETERMINATION OF MERCURY (Hg) IN GREEN MUSSELS (Perna Viridis) USING REFLUX DIGESTION BY COLD VAPOUR ATOMIC ABSORPTION SPECTROPHOTOMETRY (CV-AAS) Nisa, Atina Khoiron; Dewi, Diana C; Syarifah, Umaiyatus
SPIN JURNAL KIMIA & PENDIDIKAN KIMIA Vol. 5 No. 2 (2023): Juli - Desember 2023
Publisher : UIN Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/spin.v5i2.8369

Abstract

Green mussels, or Perna viridis, are a well-liked fishery product in the community. It can grow happily in a loch, seabord, or mangrove downstream. Through its eggshell, it takes in metals, including mercury (Hg). This study measures the effect of temperature and digestion composition on the amount of mercury (Hg) in green mussels using reflux digestion by cold vapour absorption spectrophotometry (CV-AAS). Utilizing Cold Vapour Atomic Absorption Spectrophotometry (CV-AAS) at a wavelength of 253,7 nm, the study's methodology entails figuring out the ideal digestion composition and temperature for various HNO3 p.a.: H2O2 p.a. destructor compositions (1:0; 2:1; 4:1; 10:3). The results of the investigation indicated that the optimal temperature was 800C. With a p-value (0,023) > a (0,05), the t-test result demonstrated a significant effect utilizing the variation in digestion composition. The general public can still safely consume green mussels from Muncar Beach because the sample, which was taken at the ideal temperature and with different digestion variations, contained 0.359 parts per million of mercury. The Indonesian National Standard's maximum limit is not met by these results.
Updating With Satin Patchwork Technique To Make It Bustier Nisa, Atina Khoiron; Cahyati, Rika Dwi; Dasining, Dasining; Mu'imamah, Rosita Selvina Putri
Jurnal Tekstil Vol 7 No 2 (2024): Vol 7 No 2 Desember 2024
Publisher : Akademi Komunitas Industri Tekstil Dan Produk Tekstil Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59432/jute.v7i2.110

Abstract

Bustier is underwear that has a function, namely shaping the body to be more proportional. The manufacture of this bustier uses satin patchwork as the main ingredient in its manufacture. Satin fabric is a type of fabric material that is made through a weaving process using the weave technique or filament fiber technique. Patchwork is a craft that combines pieces of patchwork and has different motifs or colors and then becomes a new shape. The manufacture of bustiers that begins with determining the patchwork motif to be used in bustiers, fabric cutting, sewing, during installation, zipper installation, balen, and finishing can produce a bustier that is unique and different from most bustiers in general. In this study, it was stated that the use of patchwork satin fabric can be used in making bustiers.
Penerapan Ekstraksi Warna Alami Pelepah Pisang Kepok (Musa Paradisiaca) untuk Pencelupan Kain Katun Primisima Nisa, Atina Khoiron; Dasining, Dasining; Mukaromah, Habibatul; Hanifah, Siti Nur; Siami, Siti Nur; Mu'imamah, Rosita Selvina Putri
BAJU: Journal of Fashion and Textile Design Unesa Vol. 6 No. 1 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/baju.v6n1.p22-29

Abstract

Natural substance coloring comes from natural ingredients that are the result of plant extracts, such as banana fronds that contain tannins in their sap and produce brown pigments. Dyeing of natural substances can be done using tunjung mordan and using Primisima cotton fabric. Primisima is a type of cotton with better quality than other types of cotton, with fine and thick fibers. This study aims to find out how to apply Primisima cotton fabric in the natural dyeing of kepok banana fronds using alum mordan (Al2SO4)3, lime (CaCO3), and tunjung (Fe(SO4)3) with dyeing techniques. The mordanting process is carried out in three ways, namely pre-mordan, simultaneous, and post-mordan, then fixed to lock the natural dyes of the mordan group and provide a more permanent color effect. The novelty of this research lies in the selection of natural dye materials from the fronds of the kepok banana and the use of different mordan combinations to obtain variations in color results in Primisima cotton fabric. Based on the dyeing results, the pre-mordan using the three mordans produces brown color and color flatness in the flat category, simultaneously produces light brown color with uneven color flatness, and post-mordan produces brown color with uneven color flatness. The best results were obtained by using the tunjung mordan on the pre-mordan, compared to simultaneous and post-mordan.
Co-Authors Cahyati, Rika Dwi Dasining, Dasining Dewi, Diana C Hanifah, Siti Nur Mu'imamah, Rosita Selvina Putri Mukaromah, Habibatul Siami, Siti Nur Umaiyatus Syarifah