?url_ver=Z39.88-2004&rft_id=2017011049&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENENTUAN+KADAR+FORMALDEHIDA+DALAM+PAKAIAN+BAYI+YANG+BEREDAR+DI+BANDAR+LAMPUNG+MENGGUNAKAN+SPEKTROFOTOMETER+UV-VIS+&rft.creator=Siti%2C+Rafera&rft.subject=507+Pendidikan%2C+penelitian%2C+topik+terkait+ilmu+pengetahuan+alam&rft.description=Pada+penelitian+ini+telah+dilakukan+penentuan+kadar+formaldehida+dalam+pakaian+bayi+menggunakan+spektrofotometer+UV-Vis.+Penelitian+ini+bertujuan+untuk+melakukan+optimasi+panjang+gelombang+maksimum%2C+optimasi+waktu+kestabilan+larutan+formaldehida%2C+melakukan+verifikasi+metode+analisis+dan+menentukan+kadar+formaldehida+dalam+pakaian+bayi+yang+beredar+di+Bandar+Lampung.+Pakaian+bayi+diambil+dari+5+(lima)+lokasi+pasar+dengan+mengambil+tiga+sampel+dari+setiap+lokasi.+Preparasi+sampel+dilakukan+dengan+metode+ekstraksi+air+sesuai+dengan+metode+SNI+ISO+14184-1%3A2015.+Filtrat+yang+diperoleh+ditambahkan+dengan+pereaksi+Nash+dan+dianalisis+menggunakan+spektrofotometer+UV-Vis.+Hasil+penelitian+menunjukkan+bahwa+optimasi+panjang+gelombang+maksimum+berada+pada+rentang+411-412+nm+dan+optimasi+waktu+kestabilan+didapatkan+absorbansi+stabil+dengan+rentang+waktu+0-45+menit+dengan+nilai+absorbansi+yaitu+0%2C32.+Hasil+pengujian+verifikasi+metode+telah+memenuhi+syarat+keberterimaan+dengan+tingkat+linieritas+yang+baik+yaitu+nilai+koefisien+korelasi+mencapai+0%2C9989.+Nilai+presisi+yang+diperoleh+menunjukkan+RSD+(1%2C36%25)+lebih+kecil+dari+2%2F3+CV+Hortwitz+(4%2C63%25).+Nilai+%25recovery+sebesar+85%2C62%25.+Batas+deteksi+dan+batas+kuantifikasi+diperoleh+nilai+sebesar+0%2C228+mg%2FL+dan+0%2C762+mg%2FL.+Hasil+pengujian+menyatakan+tidak+terdeteksinya+formaldehida+pada+seluruh+sampel+pakaian+bayi.+Hal+ini+menunjukkan+bahwa+pakaian+bayi+yang+beredar+di+Bandar+Lampung+telah+memenuhi+standar+mutu+yang+ditetapkan+oleh+Standar+Nasional+Indonesia+(SNI).+%0D%0A+%0D%0A+%0D%0AKata+kunci+%3A+Verifikasi+metode%2C+analisis%2C+formaldehida%2C+Spektrofotometer+UV-Vis.+%0D%0A%0D%0AIn+this+research%2C+formaldehyde+levels+in+baby+clothing+were+determined+using+a+UVVis+Spectrophotometer.+This+research+aims+to+optimize+the+maximum+wavelength%2C+to+optimize+the+stability+time+of+the+formaldehyde+solution%2C+to+verify+the+analytical+method%2C+and+to+determine+the+level+of+formaldehyde+in+baby+clothes+circulating+in+Bandar+Lampung.+Baby+clothing+were+collected+in+5+(five)+markets%2C+by+taking+three+samples+from+each+market.+Sample+preparation+was+carried+out+by+the+water+extraction+method+in+accordance+with+the+SNI+ISO+14184-1%3A2015+method.+The+filtrate+obtained+was+added+to+Nash+reagent+and+analyzed+using+a+UV-Vis+spectrophotometer.The+results+demonstrated+that+the+optimum+wavelength+was+in+the+range+of+411-412+nm%2C+and+the+optimization+of+stability+time+obtained+stable+absorbance+with+a+time+range+of+0-45+minutes+with+an+absorbance+value+of+0.33.+The+method+verification+test+results+acceptance+requirements+with+a+good+level+of+linearity%2C+namely+the+correlation+coefficient+value+reaching+0.9989.+The+precision+value+obtained+shows+RSD+(1.36%25)+is+smaller+than+2%2F3+CV+Hortwitz+(4.63%25).+The+recovery+value+was+85.62%25.+The+limit+of+detection+and+limit+of+quantification+obtained+values+of+0.228+mg%2FL+and+0.762+mg%2FL%2C+respectively.+The+results+show+that+formaldehyde+is+not+detected+in+the+entire+sample%2C+which+indicates+that+the+baby+clothes+circulating+in+Bandar+Lampung+comply+with+the+quality+standards+set+by+the+Indonesian+National+Standards+(SNI).+%0D%0A+%0D%0AKeywords+%3A+Method+verification%2C+analysis%2C+formaldehyde%2C+UV-Vis+Spectrophotometer.+%0D%0A+&rft.publisher=FAKULTAS+MATEMATIKA++DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2024-11-12&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81410%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81410%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81410%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Siti%2C+Rafera++(2024)+PENENTUAN+KADAR+FORMALDEHIDA+DALAM+PAKAIAN+BAYI+YANG+BEREDAR+DI+BANDAR+LAMPUNG+MENGGUNAKAN+SPEKTROFOTOMETER+UV-VIS.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F81410%2F