<p><em>Telah dilakukan penelitian “Analisis Merkuri (Hg) pada Beberapa Merek Krim Pemutih Wajah dengan Metode Spektrofotometri Serapan Atom (SSA)”. Tujuan penelitian yang dilakukan untuk mengidentifikasi dan mengukur kadar merkuri dalam beberapa merek krim pemutih wajah yang dijual di pasaran Kota Bukittinggi. Sampel diekstraksi dengan cara destruksi basah selama 3 jam pada suhu ±100°C sampai diperoleh larutan bening. Analisa kualitatif merkuri menggunakan KI 0,5 N dan NaOH 2 N. Kemudian, penentuan merkuri dalam sampel menggunakan Spektrofotometri Serapan Atom Uap Dingin. Dari hasil validasi metode diperoleh persamaan regresi Y = 0,0072x – 0,0089. Hasil penelitian menunjukkan bahwa dari kelima sampel yang diuji mengandung merkuri dengan rata-rata kadar sampel A = 0,00087 ppm, B = 0,00075 ppm, C = 0,00066 ppm, D = 1,66794 ppm, dan E = 0,00189 ppm. Sampel D mengandung merkuri di atas batas aman yang diperbolehkan BPOM RI yaitu tidak melebihi 1 mg/L atau 1 ppm.</em></p><p> </p><p><em>This research has been done Analysis of Mercury on Several Brands of Whitening Creams by using Atomic Absorption Spectrophotometry Method. The purpose of this research was to identify and measure mercury consentrations on five samples of whitening cream in the market Bukittinggi City. The samples was extracted by wet destruction for 3 hours at ± 100 °C until the solution clear. Qualitative analysis was performed using color test KI 0.5 N and NaOH 2 N. Then, the determination of mercury in the samples by using Cold Vapour Atomic Absorption Spectrophotometry. The regression equation obtained from the calibration curve is Y = 0,0072x – 0,0089. The results of the five samples showed that all samples contained mercury with average level samples A = 0,00087 ppm, B = 0,00075 ppm, C = 0,00066 ppm, D = 1,66794 ppm, dan E = 0,00189 ppm. Sample D contained mercury above the safe limit allowed by BPOM RI that is not more than 1 mg/L or 1 ppm.</em></p>

Refill drinking water is a choice of drinking water, especially for the middle-income community due to the convenience and affordable price. Many studies in Indonesia reported that drinking water from drinking water refilling stations is less safe or contaminated by coliform. This study assessed the microbial and level of several heavy metals (Cadmium, chromium, and Lead) contamination on refill drinking water from drinking water refilling station in Bungus Teluk Kabung West Sumatera, Indonesia. It found that Cadmium, Chromium, and Lead were detected in all samples. Still, none of their levels exceed the maximum permissible limits based on the guideline value on Ministry of Health Republic of Indonesia number 492/MENKES/PER/IV/2010. Lead was found as the highest amount in sample B and then Chromium in sample A with values of 0.367 ppb and 0.143 ppb. The microbial contamination presence in all three refill drinking water samples with the total coliform was 28, 15, and 240 MPN per 100 ml for samples A, B, and C. Sample C has the highest microbial risk compare to A and B. The presence of E. Coli was also confirmed for all samples, and the metallic sheen identified it in all culture samples. Because the standard of the microbial parameter must be zero for coliform and E. Coli, these results revealed that all three refill drinking water samples from drinking water refilling stations Bungus Teluk Kabung are not eligible for direct consumption and could harm human health. The proper water treatment process or change in raw water sources need to be considered in the future. Inspection and monitoring from the health authority should be scheduled regularly to protect the consumers.