@misc{eprints33176,
           month = {Agustus},
           title = {STUDI ANALISIS ION LOGAM Cu(II) DENGAN ASAM TANAT
MENGGUNAKAN SPEKTROFOTOMETER ULTRAUNGU-TAMPAK},
          author = {1417011096 RIZKA ARI WANDARI},
         address = {FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM},
       publisher = {UNIVERSITAS LAMPUNG},
            year = {2018},
             url = {http://digilib.unila.ac.id/33176/},
        abstract = {Studi analisis ion logam Cu(II) dengan asam tanat telah dilakukan. Studi ini bertujuan
untuk mengetahui panjang gelombang maksimum antara ion logam Cu(II) dengan
asam tanat serta mendapatkan kondisi optimumnya terhadap pH, konsentrasi, volume,
dan waktu kestabilan untuk senyawa ion logam Cu(II)?asam tanat. Analisis ion
logam Cu(II) dengan asam tanat dilakukan menggunakan spektrofotometer ultraungutampak.
Hasil penelitian ini diperoleh panjang gelombang maksimum senyawa
kompleks ion logam Cu(II)-asam tanat sebesar 473,5 nm dengan kondisi optimum
pada pH 11, perbandingan stoikiometri variasi konsentrasi ion logam Cu(II)-asam
tanat 1:4, perbandingan stoikiometri variasi volume ion logam Cu(II)-asam tanat
1:1, serta waktu kestabilan pada menit ke 30. Setelah didapatkan variasi optimum
lalu dilakukan validasi metode pada ion logam Cu(II) diperoleh nilai r sebesar
0.9997, pada uji presisi diperoleh nilai SD sebesar 0.0124 dan \%RSD sebesar 1.4277.
Nilai LoD dan LoQ sebesar 0.2953 dan 0.9845, serta nilai perolehan kembali
(\%recovery) sebesar 94,54\%.
Keywords: Tannic Acid, Cu(II) ion, Complex compound Cu(II) Ion- Tannic Acid,
ultraviolet-visible spectrophotometer.



abstract

A study of ionic analysis of Cu (II) ion with tannic acid has been performed. This
study aims to determine the maximum wavelength between Cu (II) ions with tannic
acid and to obtain optimum conditions for pH, concentration, volume, and stability
time for complex compound Cu (II) ion ? tannic acid. Analysis of Cu (II) ions with
tannic acid was performed using an ultraviolet-visible spectrophotometer. The results
of this study obtained the maximum wavelength of a complex compound Cu (II) ion -
tannic acid was 473.5 nm with optimum conditions at pH 11, stoichiometric ratio of
variation in the concentration of Cu (II) ion ? tannic acid was 1: 4, stoichiometric
variation volume of Cu (II) ions ? tannic acid was 1: 1, and stability time at 30th
minute. After the optimum variation was obtained then the method validation on Cu
(II) ion obtained r-value of 0.9997, in the precision test obtained value SD was
0.0124 and \% RSD was 1.4277. the value of LoD and LoQ were 0.2953 and 0.9844,
and the value of recovery (\% recovery) was 94.54\%.
Keywords: Tannic Acid, Cu(II) ion, Complex compound Cu(II) Ion- Tannic Acid,
ultraviolet-visible spectrophotometer.}
}