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"The reseaech was to study the effect of various light intensities and damonozide concentrations early flowering and quality of potted chrysabthemum....."

"Telah dilakukan uji teratogenitas Nat'iuñi. difeni1hi dantoin (Na-DPH) pada mencit strain Biomedis, bertujuan untuk memprediksi sensitivitas strain mi terhadap pemberian obat.Berat badan mencit antara 20-25 grain,berumur 2,5 bjlan.Dosis yang digunakan 50 mg/kg BB atau 100 mg/kg BB dan kontrol,dilarutkan dalam larutan 0.05% NaOH,diberikan secara intraperitoneal.Mencit yang hamil dibagi seca-ra random menjadi 12 subke1ompok.0bat diberikan selarna 3 hari dalam periode organogenesis pada hari ke 6 - 8; 9 - 11; 12.- 14 kehamilan serta dosistunggal pada hari ice 12kehamilan.Pemeniksaan fetus dilakukan setelah histerektomi pada hari ice 18 kehamilan.Dihitung jumlah fetus hidup tanpa cacat,yang. mengalami resorpsi dan mati intrauterus serta fetus cacat I yang dilihat secara rnakroskopik.Dianalisa juga berat badan mencit selama kehamilan.Dengan analisa statistic (Fisher test) menunjukkan pangaruh bermakna terhadap prevalensi cacat bawaan dibandingkan keiompok.kontroi Tidak terdapatpengaruh bermakna obat terhadap berat badan mencit selama kehamilan.

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The teratogenicity of Diphenyihydantoin Sodium (DPH -

Na) has been investigated on Biomed.is strain mjce,in order

to predict the sensitivity of 'this strain against DPH-Na.

The average body weight of the 2.5 months female mice were

20 to 25 gramThe dosages of 50 rag/kg B.W. or 100 mg/kg B.W

in 0.05% NaOH solution

were used, they were given intraperitoneally.

The pregnant mice were randomly devided into 12

sub groups based on the treatment schedule. Thedrug-were

given three days in their organogenesis period i.e on the

6th to 8th; 9th to llth;.i2tho 14th of gestation day and

a single dose on the 12th day.Fetus examination was carried

out after mice laparotomy on the 18th day of. pregnancy. The

numbers of all living and intact dead fo&tuses with resorption

a.nh foetuses with congenital anomalies were observed

and recorded.Thë weight gain along the pregnancy were also

analised.With statistical analyses (Fisher test) it was

shown that there were significant effect of PR-Na on the

congenital anomalies prevalence compared to the-control

group (p<0.05)-.There were significant effect (Fisher test),

of the administering days on the cleft palate prevalency

that were on the 9th - 11th;. 12th; 12th -.14th of gestation

day (p<0.05).There were also significant effect (Chi square

test)orte medicine on the resorption and intrauterine

deaths of all the groups (p<0..05).The effect of DPH-Na on.'

the weight gain along the pregnancy was not significant

(Anova two way test)."

"ABSTRAKKarbon aktif dari tempurung kelapa dimodifikasi dengan menggunakan natriumasetat dengan konsentrasi 3%, 5%, 10%, 15%, 20% dan 30% dan dipergunakan padakolom penyerapan untuk mempelajari penyerapan ion tembaga dan campuran ion-ion Cu, Ni dan Cr. Air limbah sintetis yang mengandung ion Cu(I1) diailirkan melaluikarbon aktif tanpa modifikasi dan yang telah dimodifikasi. Penyerapan karbon alctifsebelum dan sesudah modifikasi mengikuti model kinetika Avrami. Karbon aktiftanpa modifikasi mampu menyerap hingga.20 mg ion Cu(II) dan hasil penyerapanyang tertinggi didapat dari karbon aktif yang dimoditikasi dengan menggunakan15% nanium asetat yaim 45 mg inn Cu(ll) mu 2,2 kan dibandingkan dengan karbonaktif tanpa modifikasi. Setelah regenerasi dengan menggutamakan 20% NaOH, karbonaktif yang telah dimodifikasi mampu menyerap ion Cu(II) hingga mencapai 60 mgion Cu(II) atau 3 kali karbon aktif yang tidak dimodifikasi. Pada penyerapan ion-ioncampuran, karbon aktif yang telah dimodifikasi lebih selektif terhadap ion Cu(II)dan ion Cr(Vl) daripada terhadap ion Ni(ll`).

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ABSTRACTActivated carbon Hom coconut shell was modified with natrium acetate atconcentrations of 3%, 5%, 10%, 15%, 20% and 30%, and used in a fixed-bedcolumn to study the adsorption of copper and mixed Cu-Ni-Cr ions. Syntheticwastewater containing Cu(II) ions was passed through plain activated carbon andmodified activated carbon. The adsorption of ion Cu(lI) onto activated carbon fitwith Avrami kinetics model. Plain activated carbon was able to adsorb 20 mg ofCu(II), and the highest adsorption capacity was found for the activated carbonmodified by treatment with 15% natrium acetate, which adsorbed 45 mg of .Cu(II) or2.2 times as much as the plain activated carbon. After regeneration with 20% NaOH,activated carbon modified by treatment with 15% natrium acetate was able to adsorb60 mg of Cu(II) or 3 times as much as the plain activated carbon. In the case ofamixed ion solution, the absorbent was more selective for Cu(ll) and Cr(Vl) ions thanNi(Il) ions."

"Asam dokosaheksaenoat (DHA) sangat penting bagi pertumbuhan sistem saraf dan penglihatan bayi karena merupakan asam lemak utama dalam fosfolipid otak dan retina. Namun, manfaat penambahan DHA dalam susu formula bayi masih kontroversial. Pemberian DHA yang berlebihan pada bayi perlu diwaspadai mengingat kemungkinan terjadinya efek samping yang ditimbulkannya. Penelitian ini bertujuan memperoleh metode analisis DHA secara kromatografi gas (KG) yang valid yang akan diterapkan untuk menetapkan kadar DHA dalam susu formula. Sebelum disuntikkan ke alat KG, lemak susu diekstraksi dengan kloroform-metanol (1:2) dan kemudian dimetilasi dalam metanol-toluen (4:1) dengan asetil klorida. Kondisi KG yang digunakan yaitu: suhu injektor 230ºC, suhu detektor 250ºC, suhu oven terprogram dengan suhu awal 130ºC dinaikkan 2ºC/menit sampai 230ºC kemudian suhu ditahan selama 20 menit, laju alir helium 2,00 ml/menit, split 1:3. Metode ini telah memenuhi syarat uji presisi dan uji perolehan kembali. Hasil penetapan kadar DHA dari 5 sampel susu formula bayi dan anak yaitu (27,49 ± 0,62) mg/100 g, (31,14 ± 0,43) mg/100 g, (11,83 ± 0,38) mg/100 g, (19,34 ± 0,58) mg/ 100 g, dan (45,87 ± 0,42) mg/100 g.

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Docosahexaenoic acid (DHA) is important for development of infant's nervous and visual system because it is a major fatty acid in brain and retina phospholipids. However, the benefit of DHA addition in infant formula is still controversial. The over intake of DHA should be an awareness because of its side effect. The aim of this study was to get a valid analysis method of DHA using gas chromatography (GC) which will be used to determine the concentration of DHA in infant formula. Before being injected to GC, the milk fat was extracted with chloroform-methanol (1:2) and then methylated in methanol-toluene (4:1) with acetyl chloride. The GC conditions were: injector temperature was 230ºC, detector temperature was 250ºC, oven temperature was programmed to increase from 130ºC to 230ºC by 2ºC/minute and held for 20 minutes, helium flow rate was 2.00 ml/minute, and split ratio was 1:3. This method had passed the precision and recovery evaluation. The results of DHA determination in 5 infant formula samples were (27.49 ± 0.62) mg/100 g, (31.14 ± 0.43) mg/100 g, (11.83 ± 0.38) mg/100 g, (19.34 ± 0.58) mg/ 100 g, and (45.87 ± 0.42) mg/100 g."

"Statin adalah kelompok obat antihiperlipidemik yang dapat menurunkan kadar kolesterol dalam darah. Statin dapat menghambat kerja enzim HMG CoA reductase yang berperan dalam reaksi konverasi HMG CoA dalam sintsesis kolesterol dalam hati. Dehidrolovastatin adalah senyawa analog dari lovastatin yang nantinya digunakan untuk terapi pasien yang mempunyai kadar kolesterol darah yang tinggi. Tujuan dari penelitian ini adalah mendapatkan metode yang valid untuk penetapankadar dehidrolovastatin dalam plasma in vitro. Validasi metode analisis ini meliputi studi tentang kurva kalibrasi dan linieritas, LLOQ dan selektivitas, akurasi, presisi, perolehan kembali dan stabilitas. Metode analisis ini menggunakan KCKT Knauer dengan perangkat detektor UV 2500, kolom Kromasil ®100-5, C18, 250 x 4,6 mm.Sistim fase terbalik ini mempunyai kondisi optimum yaitu menggunakan fase gerak asetonitril dan asam fosfat 0,1 % (75:25), laju alir 1,2 mL/menit, standar internal simvastatin dan panjang gelombang 238 nm. Sampel dengan rentang konsentrasi 0,013 - 0,200 ppm memberikan kurva kalibrasi dengan koefisien korelasi 0,998 dan LLOQ 0,013 ppm. Hasil penelitian validasi metode penetapan kadar ini memenuhi persyaratan standar.

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AbstractStatins are antihyperlipidemic drugs for lowering LDL-cholesterol level in human blood. They were designed to inhibit HMG CoA reductase in the liver so that the enzyme will not catalyze the transformation of HMG CoA into early precursor of LDL-cholesterol. Dehydrolovastatin is a kind of statins whose structure is analogous to lovastatin (its starting material). The aim of this study was to validate method forin vitro analysis of dehidrolovastatin in plasm. The validation included studies of calibration curve and linearity, LLOQ and selectivity, accuracy, precision, recovery, and stability. Dehidrolovastatin was deteminated by Knauer ® HPLC using UV 2500detector, Kromasil ® 100-5, C18, 250 mm, 4.6 mm i.d., column. Reversed phase was applied with the optimal condition such as mobile phase acetonitrile and phosphoric acid 0.1 % (75:25), the flow rate of 1.2 mL. minutes -1, simvastatin as internalstandard and wavelength 238 nm. Concentrations of sample ranged from 0.013 to 0.200 ppm with correlation coefficient of the calibration curves 0,998 and lower limit of quantitation was 0.013 ppm. The results of validation studies fulfilled standard criteria."